Python基础（二）
本章内容：
- Python 运算符（算术运算、比较运算、赋值运算、逻辑运算、成员运算）
- 基本数据类型（数字、布尔值、字符串、列表、元组、字典、set 集合）
- for 循环
- enumrate
- range 和 xrange
- 编码与进制转换
Python 运算符 |
1、算术运算：
2、比较运算：
3、赋值运算：
4、逻辑运算：
5、成员运算：
基本数据类型 |
1、数字
int（整型）
在 32 位机器上，整数的位数为 32 位，取值范围为 -2**31～2**31-1，即 -2147483648～2147483647
在 64 位系统上，整数的位数为 64 位，取值范围为 -2**63～2**63-1，即 -9223372036854775808～9223372036854775807
在 64 位系统上，整数的位数为 64 位，取值范围为 -2**63～2**63-1，即 -9223372036854775808～9223372036854775807
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 | #返回表示该数字的时占用的最少位数 >>> (951).bit_length() 10#返回绝对值 >>> (95).__abs__() 95 >>> (-95).__abs__() 95#用来区分数字和字符串的 >>> (95).__add__(1) 96 >>> (95).__add__("1") NotImplemented#判断一个整数对象是否为0，如果为0,则返回False，如果不为0，则返回True >>> (95).__bool__() True >>> (0).__bool__() False#判断两个值是否相等 >>> (95).__eq__(95) True >>> (95).__eq__(9) False#判断是否不等于 >>> (95).__ne__(9) True >>> (95).__ne__(95) False#判断是否大于等于 >>> (95).__ge__(9) True >>> (95).__ge__(99) False#判断是否大于 >>> (95).__gt__(9) True >>> (95).__gt__(99) False#判断是否小于等于 >>> (95).__le__(99) True >>> (95).__le__(9) False#判断是否小于 >>> (95).__lt__(9) False >>> (95).__lt__(99) True#加法运算 >>> (95).__add__(5) 100#减法运算 >>> (95).__sub__(5) 90#乘法运算 >>> (95).__mul__(10) 950#除法运算 >>> (95).__truediv__(5) 19.0#取模运算 >>> (95).__mod__(9) 5#幂运算 >>> (2).__pow__(10) 1024#整除，保留结果的整数部分 >>> (95).__floordiv__(9) >>>#转换为整型 >>> (9.5).__int__() 9#返回一个对象的整数部分 >>> (9.5).__trunc__() 9#将正数变为负数，将负数变为正数 >>> (95).__neg__() -95 >>> (-95).__neg__() 95#将一个正数转为字符串 >>> a = 95 >>> a = a.__str__() >>> print(type(a)) <class 'str'>#将一个整数转换成浮点型 >>> (95).__float__() 95.0#转换对象的类型 >>> (95).__format__('f') '95.000000' >>> (95).__format__('b') '1011111'#在内存中占多少个字节 >>> a = 95 >>> a.__sizeof__() 28 |
class int(object): """ int(x=0) -> integer int(x, base=10) -> integerConvert a number or string to an integer, or return 0 if no arguments are given. If x is a number, return x.__int__(). For floating point numbers, this truncates towards zero. If x is not a number or if base is given, then x must be a string, bytes, or bytearray instance representing an integer literal in the given base. The literal can be preceded by '+' or '-' and be surrounded by whitespace. The base defaults to 10. Valid bases are 0 and 2-36. Base 0 means to interpret the base from the string as an integer literal. >>> int('0b100', base=0) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> bit_length(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> int.bit_length() -> int Number of bits necessary to represent self in binary. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 表示该数字返回时占用的最少位数 >>> (951).bit_length() 10 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> 0 </span><span style="color: rgba(0, 0, 255, 1)">def</span> conjugate(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Returns self, the complex conjugate of any int.</span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 返回该复数的共轭复数 #返回复数的共轭复数 >>> (95 + 11j).conjugate() (95-11j) #返回复数的实数部分 >>> (95 + 11j).real 95.0 #返回复数的虚数部分 >>> (95 + 11j).imag 11.0 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span><span style="color: rgba(0, 0, 0, 1)"> @classmethod </span><span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known case</span> <span style="color: rgba(0, 0, 255, 1)">def</span> from_bytes(cls, bytes, byteorder, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; NOTE: unreliably restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> int.from_bytes(bytes, byteorder, *, signed=False) -> int Return the integer represented by the given array of bytes. The bytes argument must be a bytes-like object (e.g. bytes or bytearray). The byteorder argument determines the byte order used to represent the integer. If byteorder is 'big', the most significant byte is at the beginning of the byte array. If byteorder is 'little', the most significant byte is at the end of the byte array. To request the native byte order of the host system, use `sys.byteorder' as the byte order value. The signed keyword-only argument indicates whether two's complement is used to represent the integer. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 这个方法是在Python3.2的时候加入的,python官方给出了下面几个例子： >>> int.from_bytes(b'\x00\x10', byteorder='big') >>> int.from_bytes(b'\x00\x10', byteorder='little') >>> int.from_bytes(b'\xfc\x00', byteorder='big', signed=True) -1024 >>> int.from_bytes(b'\xfc\x00', byteorder='big', signed=False) >>> int.from_bytes([255, 0, 0], byteorder='big') </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> to_bytes(self, length, byteorder, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; NOTE: unreliably restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> int.to_bytes(length, byteorder, *, signed=False) -> bytes Return an array of bytes representing an integer. The integer is represented using length bytes. An OverflowError is raised if the integer is not representable with the given number of bytes. The byteorder argument determines the byte order used to represent the integer. If byteorder is 'big', the most significant byte is at the beginning of the byte array. If byteorder is 'little', the most significant byte is at the end of the byte array. To request the native byte order of the host system, use `sys.byteorder' as the byte order value. The signed keyword-only argument determines whether two's complement is used to represent the integer. If signed is False and a negative integer is given, an OverflowError is raised. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> python官方给出了下面几个例子： >>> (1024).to_bytes(2, byteorder='big') b'\x04\x00' >>> (1024).to_bytes(10, byteorder='big') b'\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00' >>> (-1024).to_bytes(10, byteorder='big', signed=True) b'\xff\xff\xff\xff\xff\xff\xff\xff\xfc\x00' >>> x = 1000 >>> x.to_bytes((x.bit_length() // 8) + 1, byteorder='little') b'\xe8\x03' </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__abs__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> abs(self)</span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 返回一个绝对值 >>> (95).__abs__() -95 >>> (-95).__abs__() 95 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__add__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self+value.</span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 加法，也可区分数字和字符串 >>> (95).__add__(1) 96 >>> (95).__add__("1") NotImplemented >>> </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__and__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self&value.</span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__bool__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> self != 0 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 判断一个整数对象是否为0，如果为0,则返回False，如果不为0，则返回True >>> (95).__bool__() True >>> (0).__bool__() False </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ceil__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Ceiling of an Integral returns itself. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__divmod__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return divmod(self, value). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 返回一个元组，第一个元素为商，第二个元素为余数 >>> (9).__divmod__(5) (1, 4) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__eq__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self==value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 判断两个值是否相等 >>> (95).__eq__(95) True >>> (95).__eq__(9) False </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__float__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> float(self) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 将一个整数转换成浮点型 >>> (95).__float__() 95.0 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__floordiv__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self//value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 整除，保留结果的整数部分 >>> (95).__floordiv__(9) 10 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__floor__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Flooring an Integral returns itself. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 返回本身 >>> (95).__floor__() 95 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__format__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 转换对象的类型 >>> (95).__format__('f') '95.000000' >>> (95).__format__('b') '1011111' </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__getattribute__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return getattr(self, name). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 判断这个类中是否包含这个属性，如果包含则打印出值，如果不包含，就报错了 >>> (95).__getattribute__('__abs__') <method-wrapper '__abs__' of int object at 0x9f93c0> >>> (95).__getattribute__('__aaa__') Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: 'int' object has no attribute '__aaa__' </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__getnewargs__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ge__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self>=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 判断是否大于等于 >>> (95).__ge__(9) True >>> (95).__ge__(99) False </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__gt__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self>value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 判断是否大于 >>> (95).__gt__(9) True >>> (95).__gt__(99) False </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__hash__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return hash(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 计算哈希值，整数返回本身 >>> (95).__hash__() 95 >>> (95.95).__hash__() 2190550858753015903 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__index__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self converted to an integer, if self is suitable for use as an index into a list. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__init__</span>(self, x, base=10): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known special case of int.__init__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 这个是一个类的初始化方法，当int类被实例化的时候，这个方法默认就会被执行 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> int(x=0) -> integer int(x, base=10) -> integer Convert a number or string to an integer, or return 0 if no arguments are given. If x is a number, return x.__int__(). For floating point numbers, this truncates towards zero. If x is not a number or if base is given, then x must be a string, bytes, or bytearray instance representing an integer literal in the given base. The literal can be preceded by '+' or '-' and be surrounded by whitespace. The base defaults to 10. Valid bases are 0 and 2-36. Base 0 means to interpret the base from the string as an integer literal. >>> int('0b100', base=0) # (copied from class doc) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__int__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> int(self) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 转换为整型 >>> (9.5).__int__() 9 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__invert__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> ~self </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__le__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self<=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 判断是否小于等于 >>> (95).__le__(99) True >>> (95).__le__(9) False </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__lshift__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self<<value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 用于二进制位移，这个是向左移动 >>> bin(95) '0b1011111' >>> a = (95).__lshift__(2) >>> bin(a) '0b101111100' >>> </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__lt__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self<value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 判断是否小于 >>> (95).__lt__(9) False >>> (95).__lt__(99) True </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__mod__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self%value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 取模 % >>> (95).__mod__(9) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__mul__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self*value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 乘法 * >>> (95).__mul__(10) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__neg__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> -self </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 将正数变为负数，将负数变为正数 >>> (95).__neg__() -95 >>> (-95).__neg__() 95 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span><span style="color: rgba(0, 0, 0, 1)"> @staticmethod </span><span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known case of __new__</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__new__</span>(*args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Create and return a new object. See help(type) for accurate signature. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ne__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self!=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 不等于 >>> (95).__ne__(9) True >>> (95).__ne__(95) False </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__or__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self|value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 二进制或的关系，只要有一个为真，就为真 >>> a = 4 >>> b = 0 >>> a.__or__(b) # a --> 00000100 b --> 00000000 >>> b = 1 # b --> 00000001 >>> a.__or__(b) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__pos__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> +self </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__pow__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return pow(self, value, mod). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 幂 >>> (2).__pow__(10) 1024 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__radd__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signatre unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value+self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 加法，将value放在前面 >>> a.__radd__(b) # 相当于 b+a </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rand__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value&self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 二进制与的关系，两个都为真，才为真，有一个为假，就为假 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rdivmod__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return divmod(value, self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__repr__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return repr(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rfloordiv__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value//self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rlshift__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value<<self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rmod__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value%self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rmul__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value*self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ror__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value|self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__round__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Rounding an Integral returns itself. Rounding with an ndigits argument also returns an integer. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rpow__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return pow(value, self, mod). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rrshift__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value>>self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rshift__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self>>value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rsub__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value-self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rtruediv__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value/self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rxor__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value^self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__sizeof__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Returns size in memory, in bytes </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 在内存中占多少个字节 >>> a = 95 >>> a.__sizeof__() 28 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__str__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return str(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 将一个正数转为字符串 >>> a = 95 >>> a = a.__str__() >>> print(type(a)) <class 'str'> </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__sub__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self-value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 减法运算 >>> (95).__sub__(5) 90 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__truediv__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self/value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 除法运算 >>> (95).__truediv__(5) 19.0 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__trunc__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Truncating an Integral returns itself. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 返回一个对象的整数部分 >>> (95.95).__trunc__() 95 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__xor__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self^value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 将对象与值进行二进制的或运算，一个为真，就为真 >>> a = 4 >>> b = 1 >>> a.__xor__(b) >>> c = 0 >>> a.__xor__(c) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span><span style="color: rgba(0, 0, 0, 1)"> denominator </span>= property(<span style="color: rgba(0, 0, 255, 1)">lambda</span> self: object(), <span style="color: rgba(0, 0, 255, 1)">lambda</span> self, v: None, <span style="color: rgba(0, 0, 255, 1)">lambda</span> self: None) <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> default</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 分母 = 1 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)">the denominator of a rational number in lowest terms</span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> imag </span>= property(<span style="color: rgba(0, 0, 255, 1)">lambda</span> self: object(), <span style="color: rgba(0, 0, 255, 1)">lambda</span> self, v: None, <span style="color: rgba(0, 0, 255, 1)">lambda</span> self: None) <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> default</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 虚数 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)">the imaginary part of a complex number</span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> numerator </span>= property(<span style="color: rgba(0, 0, 255, 1)">lambda</span> self: object(), <span style="color: rgba(0, 0, 255, 1)">lambda</span> self, v: None, <span style="color: rgba(0, 0, 255, 1)">lambda</span> self: None) <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> default</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 分子 = 数字大小 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)">the numerator of a rational number in lowest terms</span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> real </span>= property(<span style="color: rgba(0, 0, 255, 1)">lambda</span> self: object(), <span style="color: rgba(0, 0, 255, 1)">lambda</span> self, v: None, <span style="color: rgba(0, 0, 255, 1)">lambda</span> self: None) <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> default</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 实属 </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)">the real part of a complex number</span><span style="color: rgba(128, 0, 0, 1)">"""</span></pre>
2、布尔值
真或假
1 或 0
3、字符串
"Hello World!"
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | s = "nick"#索引print(s[0])print(s[1])print(s[2])print(s[3])#长度ret = len(s)print(ret)#切片print(s[1:3])print(s.rsplit("ic"))#替换name = "Nick is good, Today is nice day."a = name.replace("good","man")print(a)#连接两个字符串li = ["nick","serven"]a = "".join(li)b = "_".join(li)print(a)print(b)#指定的分隔符将字符串进行分割a = s.rpartition("i")print(a)#分割，前，中，后三部分 name = "Nick is good, Today is nice day."a = name.partition("good")print(a)#for循环for i in s: print(i)for i in range(5): print(i)# 反转s = 'ssssssssss111'print(s[::-1]) # 111ssssssssss |
class str(object): """ str(object='') -> str str(bytes_or_buffer[, encoding[, errors]]) -> strCreate a new string object from the given object. If encoding or errors is specified, then the object must expose a data buffer that will be decoded using the given encoding and error handler. Otherwise, returns the result of object.__str__() (if defined) or repr(object). encoding defaults to sys.getdefaultencoding(). errors defaults to 'strict'. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> capitalize(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 首字母变大写 name = "nick is good, Today is nice day." a = name.capitalize() print(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> S.capitalize() </span>-><span style="color: rgba(0, 0, 0, 1)"> str Return a capitalized version of S, i.e. make the first character have upper case </span><span style="color: rgba(0, 0, 255, 1)">and</span><span style="color: rgba(0, 0, 0, 1)"> the rest lower case. </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> return "" def casefold(self): # real signature unknown; restored from __doc__ </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 首字母变小写 name </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">Nick is good, Today is nice day.</span> a =<span style="color: rgba(0, 0, 0, 1)">name.casefold() </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.casefold() -> str Return a version of S suitable for caseless comparisons. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> center(self, width, fillchar=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 内容居中，width：总长度；fillchar：空白处填充内容，默认无。 name = "Nick is good, Today is nice day. a = name.center(60,'$') print(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> S.center(width[, fillchar]) </span>-><span style="color: rgba(0, 0, 0, 1)"> str Return S centered </span><span style="color: rgba(0, 0, 255, 1)">in</span> a string of length width. Padding <span style="color: rgba(0, 0, 255, 1)">is</span><span style="color: rgba(0, 0, 0, 1)"> done using the specified fill character (default </span><span style="color: rgba(0, 0, 255, 1)">is</span><span style="color: rgba(0, 0, 0, 1)"> a space) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> return "" def count(self, sub, start=None, end=None): # real signature unknown; restored from __doc__ </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 子序列个数，0到26中n出现了几次。 name </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">nck is good, Today is nice day.</span> a = name.count(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">n</span><span style="color: rgba(128, 0, 0, 1)">"</span>,0,26<span style="color: rgba(0, 0, 0, 1)">) </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.count(sub[, start[, end]]) -> int Return the number of non-overlapping occurrences of substring sub in string S[start:end]. Optional arguments start and end are interpreted as in slice notation. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> 0 </span><span style="color: rgba(0, 0, 255, 1)">def</span> encode(self, encoding=<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">utf-8</span><span style="color: rgba(128, 0, 0, 1)">'</span>, errors=<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">strict</span><span style="color: rgba(128, 0, 0, 1)">'</span>): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 编码，针对unicode. temp </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">烧饼</span> temp.encode(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">unicode</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.encode(encoding='utf-8', errors='strict') -> bytes Encode S using the codec registered for encoding. Default encoding is 'utf-8'. errors may be given to set a different error handling scheme. Default is 'strict' meaning that encoding errors raise a UnicodeEncodeError. Other possible values are 'ignore', 'replace' and 'xmlcharrefreplace' as well as any other name registered with codecs.register_error that can handle UnicodeEncodeErrors. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> b<span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> endswith(self, suffix, start=None, end=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 是否以XX结束，0到4是否以k结尾 name </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">nck is good, Today is nice day.</span> a = name.endswith(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">k</span><span style="color: rgba(128, 0, 0, 1)">"</span>,0,4<span style="color: rgba(0, 0, 0, 1)">) </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.endswith(suffix[, start[, end]]) -> bool Return True if S ends with the specified suffix, False otherwise. With optional start, test S beginning at that position. With optional end, stop comparing S at that position. suffix can also be a tuple of strings to try. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> False </span><span style="color: rgba(0, 0, 255, 1)">def</span> expandtabs(self, tabsize=8): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 将tab转换成空格，默认一个tab转换成8个空格 a </span>=<span style="color: rgba(0, 0, 0, 1)"> n.expandtabs() b </span>= n.expandtabs(16<span style="color: rgba(0, 0, 0, 1)">) </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(b) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.expandtabs(tabsize=8) -> str Return a copy of S where all tab characters are expanded using spaces. If tabsize is not given, a tab size of 8 characters is assumed. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> find(self, sub, start=None, end=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 寻找子序列位置，如果没找到，返回 </span>-1<span style="color: rgba(0, 0, 0, 1)">。 name </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">nck is good, Today is nice day. </span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> a </span>= name.find(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">nickk</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">) </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.find(sub[, start[, end]]) -> int Return the lowest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation. Return -1 on failure. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> 0 </span><span style="color: rgba(0, 0, 255, 1)">def</span> format(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known special case of str.format</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 字符串格式化，动态参数 name </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">nck is good, Today is nice day. </span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> a </span>=<span style="color: rgba(0, 0, 0, 1)"> name.format() </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.format(*args, **kwargs) -> str Return a formatted version of S, using substitutions from args and kwargs. The substitutions are identified by braces ('{' and '}'). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> format_map(self, mapping): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> dict </span>= {<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">Foo</span><span style="color: rgba(128, 0, 0, 1)">'</span>: 54.23345<span style="color: rgba(0, 0, 0, 1)">}fmt = "Foo = {Foo:.3f}"
result = fmt.format_map(dict)
print(result) #Foo = 54.233
"""
S.format_map(mapping) -> strReturn a formatted version of S, using substitutions from mapping. The substitutions are identified by braces ('{' and '}'). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> index(self, sub, start=None, end=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)">子序列位置，如果没有找到就报错</span> name = <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">nck is good, Today is nice day. </span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> a </span>= name.index(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">nick</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">) </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.index(sub[, start[, end]]) -> int Like S.find() but raise ValueError when the substring is not found. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> 0 </span><span style="color: rgba(0, 0, 255, 1)">def</span> isalnum(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 是否是字母和数字 name </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">nck is good, Today is nice day. </span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> a </span>=<span style="color: rgba(0, 0, 0, 1)"> name.isalnum() </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.isalnum() -> bool Return True if all characters in S are alphanumeric and there is at least one character in S, False otherwise. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> False </span><span style="color: rgba(0, 0, 255, 1)">def</span> isalpha(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 是否是字母 name </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">nck is good, Today is nice day. </span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> a </span>=<span style="color: rgba(0, 0, 0, 1)"> name.isalpha() </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.isalpha() -> bool Return True if all characters in S are alphabetic and there is at least one character in S, False otherwise. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> False </span><span style="color: rgba(0, 0, 255, 1)">def</span> isdecimal(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 检查字符串是否只包含十进制字符。这种方法只存在于unicode对象。 </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> S.isdecimal() </span>-><span style="color: rgba(0, 0, 0, 1)"> bool Return True </span><span style="color: rgba(0, 0, 255, 1)">if</span> there are only decimal characters <span style="color: rgba(0, 0, 255, 1)">in</span><span style="color: rgba(0, 0, 0, 1)"> S, False otherwise. </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> return False def isdigit(self): # real signature unknown; restored from __doc__ </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 是否是数字 name = "nck is good, Today is nice day. " a = name.isdigit() print(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> S.isdigit() </span>-><span style="color: rgba(0, 0, 0, 1)"> bool Return True </span><span style="color: rgba(0, 0, 255, 1)">if</span> all characters <span style="color: rgba(0, 0, 255, 1)">in</span><span style="color: rgba(0, 0, 0, 1)"> S are digits </span><span style="color: rgba(0, 0, 255, 1)">and</span> there <span style="color: rgba(0, 0, 255, 1)">is</span> at least one character <span style="color: rgba(0, 0, 255, 1)">in</span><span style="color: rgba(0, 0, 0, 1)"> S, False otherwise. </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> return False def isidentifier(self): # real signature unknown; restored from __doc__ </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 判断字符串是否可为合法的标识符 </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)">S.isidentifier() -> bool
Return True </span><span style="color: rgba(0, 0, 255, 1)">if</span> S <span style="color: rgba(0, 0, 255, 1)">is</span><span style="color: rgba(0, 0, 0, 1)"> a valid identifier according to the language definition. Use keyword.iskeyword() to test </span><span style="color: rgba(0, 0, 255, 1)">for</span><span style="color: rgba(0, 0, 0, 1)"> reserved identifiers such as </span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">def</span><span style="color: rgba(128, 0, 0, 1)">"</span> <span style="color: rgba(0, 0, 255, 1)">and</span> <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">class</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">. </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> return False def islower(self): # real signature unknown; restored from __doc__ </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 是否小写 name = "nck is good, Today is nice day. " a = name.islower() print(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> S.islower() </span>-><span style="color: rgba(0, 0, 0, 1)"> bool Return True </span><span style="color: rgba(0, 0, 255, 1)">if</span> all cased characters <span style="color: rgba(0, 0, 255, 1)">in</span> S are lowercase <span style="color: rgba(0, 0, 255, 1)">and</span> there <span style="color: rgba(0, 0, 255, 1)">is</span><span style="color: rgba(0, 0, 0, 1)"> at least one cased character </span><span style="color: rgba(0, 0, 255, 1)">in</span><span style="color: rgba(0, 0, 0, 1)"> S, False otherwise. </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> return False def isnumeric(self): # real signature unknown; restored from __doc__ </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 检查是否只有数字字符组成的字符串 name = "111111111111111” a = name.isnumeric() print(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> S.isnumeric() </span>-><span style="color: rgba(0, 0, 0, 1)"> bool Return True </span><span style="color: rgba(0, 0, 255, 1)">if</span> there are only numeric characters <span style="color: rgba(0, 0, 255, 1)">in</span><span style="color: rgba(0, 0, 0, 1)"> S, False otherwise. </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> return False def isprintable(self): # real signature unknown; restored from __doc__ </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 判断字符串中所有字符是否都属于可见字符 name = "nck is good, Today is nice day. " a = name.isprintable() print(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> S.isprintable() </span>-><span style="color: rgba(0, 0, 0, 1)"> bool Return True </span><span style="color: rgba(0, 0, 255, 1)">if</span> all characters <span style="color: rgba(0, 0, 255, 1)">in</span><span style="color: rgba(0, 0, 0, 1)"> S are considered printable </span><span style="color: rgba(0, 0, 255, 1)">in</span> repr() <span style="color: rgba(0, 0, 255, 1)">or</span> S <span style="color: rgba(0, 0, 255, 1)">is</span><span style="color: rgba(0, 0, 0, 1)"> empty, False otherwise. </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> return False def isspace(self): # real signature unknown; restored from __doc__ </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 字符串是否只由空格组成 name = " " a = name.isspace() print(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> S.isspace() </span>-><span style="color: rgba(0, 0, 0, 1)"> bool Return True </span><span style="color: rgba(0, 0, 255, 1)">if</span> all characters <span style="color: rgba(0, 0, 255, 1)">in</span><span style="color: rgba(0, 0, 0, 1)"> S are whitespace </span><span style="color: rgba(0, 0, 255, 1)">and</span> there <span style="color: rgba(0, 0, 255, 1)">is</span> at least one character <span style="color: rgba(0, 0, 255, 1)">in</span><span style="color: rgba(0, 0, 0, 1)"> S, False otherwise. </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> return False def istitle(self): # real signature unknown; restored from __doc__ </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 检测字符串中所有的单词拼写首字母是否为大写，且其他字母为小写 name = "Nick, Today." a = name.istitle() print(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.istitle() -> bool Return True if S is a titlecased string and there is at least one character in S, i.e. upper- and titlecase characters may only follow uncased characters and lowercase characters only cased ones. Return False otherwise. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> False </span><span style="color: rgba(0, 0, 255, 1)">def</span> isupper(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 检测字符串中所有的字母是否都为大写 name </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">NICK</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> a </span>=<span style="color: rgba(0, 0, 0, 1)"> name.isupper() </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.isupper() -> bool Return True if all cased characters in S are uppercase and there is at least one cased character in S, False otherwise. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> False </span><span style="color: rgba(0, 0, 255, 1)">def</span> join(self, iterable): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 连接两个字符串 li </span>= [<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">nick</span><span style="color: rgba(128, 0, 0, 1)">"</span>,<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">serven</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">] a </span>= <span style="color: rgba(128, 0, 0, 1)">""</span><span style="color: rgba(0, 0, 0, 1)">.join(li) b </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">_</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">.join(li) </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(b) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.join(iterable) -> str Return a string which is the concatenation of the strings in the iterable. The separator between elements is S. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> ljust(self, width, fillchar=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 向左对齐，右侧填充 name </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">nck is good, Today is nice day. </span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> a </span>= name.ljust(66<span style="color: rgba(0, 0, 0, 1)">) </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.ljust(width[, fillchar]) -> str Return S left-justified in a Unicode string of length width. Padding is done using the specified fill character (default is a space). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> lower(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 容左对齐，右侧填充 name </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">NiNi</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> a </span>=<span style="color: rgba(0, 0, 0, 1)"> name.lower() </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.lower() -> str Return a copy of the string S converted to lowercase. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> lstrip(self, chars=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> 移除左侧空白 <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.lstrip([chars]) -> str Return a copy of the string S with leading whitespace removed. If chars is given and not None, remove characters in chars instead. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> maketrans(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 用于创建字符映射的转换表，对于接受两个参数的最简单的调用方式，第一个参数是字符串，表示需要转换的字符，第二个参数也是字符串表示转换的目标。 </span><span style="color: rgba(0, 0, 255, 1)">from</span> string <span style="color: rgba(0, 0, 255, 1)">import</span><span style="color: rgba(0, 0, 0, 1)"> maketrans intab </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">aeiou</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> outtab </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">12345</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> trantab </span>=<span style="color: rgba(0, 0, 0, 1)"> maketrans(intab, outtab) str </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">this is string example....wow!!!</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">; </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)"> str.translate(trantab); </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return a translation table usable for str.translate(). If there is only one argument, it must be a dictionary mapping Unicode ordinals (integers) or characters to Unicode ordinals, strings or None. Character keys will be then converted to ordinals. If there are two arguments, they must be strings of equal length, and in the resulting dictionary, each character in x will be mapped to the character at the same position in y. If there is a third argument, it must be a string, whose characters will be mapped to None in the result. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> partition(self, sep): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 分割，前，中，后三部分 name </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">Nick is good, Today is nice day.</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> a </span>= name.partition(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">good</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">) </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.partition(sep) -> (head, sep, tail) Search for the separator sep in S, and return the part before it, the separator itself, and the part after it. If the separator is not found, return S and two empty strings. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> replace(self, old, new, count=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 替换 name </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">Nick is good, Today is nice day.</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> a </span>= name.replace(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">good</span><span style="color: rgba(128, 0, 0, 1)">"</span>,<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">man</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">) </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.replace(old, new[, count]) -> str Return a copy of S with all occurrences of substring old replaced by new. If the optional argument count is given, only the first count occurrences are replaced. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> rfind(self, sub, start=None, end=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 返回字符串最后一次出现的位置，如果没有匹配项则返回</span>-1 <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)">S.rfind(sub[, start[, end]]) -> int
Return the highest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation. Return -1 on failure. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> 0 </span><span style="color: rgba(0, 0, 255, 1)">def</span> rindex(self, sub, start=None, end=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 返回子字符串 str 在字符串中最后出现的位置，如果没有匹配的字符串会报异常 </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)">S.rindex(sub[, start[, end]]) -> int
Like S.rfind() but raise ValueError when the substring is not found. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> 0 </span><span style="color: rgba(0, 0, 255, 1)">def</span> rjust(self, width, fillchar=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 返回一个原字符串右对齐,并使用空格填充至长度 width 的新字符串。如果指定的长度小于字符串的长度则返回原字符串 str </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">this is string example....wow!!!</span><span style="color: rgba(128, 0, 0, 1)">"</span>print(str.rjust(50, '$'))
"""
S.rjust(width[, fillchar]) -> strReturn S right-justified in a string of length width. Padding is done using the specified fill character (default is a space). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> rpartition(self, sep): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 根据指定的分隔符将字符串进行分割 </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.rpartition(sep) -> (head, sep, tail) Search for the separator sep in S, starting at the end of S, and return the part before it, the separator itself, and the part after it. If the separator is not found, return two empty strings and S. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> rsplit(self, sep=None, maxsplit=-1): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 指定分隔符对字符串进行切片 name </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">Nick is good, Today is nice day.</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> a </span>= name.rsplit(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">is</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">) </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.rsplit(sep=None, maxsplit=-1) -> list of strings Return a list of the words in S, using sep as the delimiter string, starting at the end of the string and working to the front. If maxsplit is given, at most maxsplit splits are done. If sep is not specified, any whitespace string is a separator. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> [] </span><span style="color: rgba(0, 0, 255, 1)">def</span> rstrip(self, chars=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 删除 string 字符串末尾的指定字符（默认为空格） </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.rstrip([chars]) -> str Return a copy of the string S with trailing whitespace removed. If chars is given and not None, remove characters in chars instead. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> split(self, sep=None, maxsplit=-1): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 通过指定分隔符对字符串进行切片 str </span>= <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">Line1-abcdef \nLine2-abc \nLine4-abcd</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">; </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)"> str.split( ); </span><span style="color: rgba(0, 0, 255, 1)">print</span> str.split(<span style="color: rgba(128, 0, 0, 1)">'</span> <span style="color: rgba(128, 0, 0, 1)">'</span>, 1<span style="color: rgba(0, 0, 0, 1)"> ); </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.split(sep=None, maxsplit=-1) -> list of strings Return a list of the words in S, using sep as the delimiter string. If maxsplit is given, at most maxsplit splits are done. If sep is not specified or is None, any whitespace string is a separator and empty strings are removed from the result. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> [] </span><span style="color: rgba(0, 0, 255, 1)">def</span> splitlines(self, keepends=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 按照行分隔，返回一个包含各行作为元素的列表 </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.splitlines([keepends]) -> list of strings Return a list of the lines in S, breaking at line boundaries. Line breaks are not included in the resulting list unless keepends is given and true. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> [] </span><span style="color: rgba(0, 0, 255, 1)">def</span> startswith(self, prefix, start=None, end=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 检查字符串是否是以指定子字符串开头，如果是则返回 True，否则返回 False </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)">S.startswith(prefix[, start[, end]]) -> bool
Return True if S starts with the specified prefix, False otherwise. With optional start, test S beginning at that position. With optional end, stop comparing S at that position. prefix can also be a tuple of strings to try. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> False </span><span style="color: rgba(0, 0, 255, 1)">def</span> strip(self, chars=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 用于移除字符串头尾指定的字符（默认为空格）. </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.strip([chars]) -> str Return a copy of the string S with leading and trailing whitespace removed. If chars is given and not None, remove characters in chars instead. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> swapcase(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 用于对字符串的大小写字母进行转换 </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.swapcase() -> str Return a copy of S with uppercase characters converted to lowercase and vice versa. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> title(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.title() -> str Return a titlecased version of S, i.e. words start with title case characters, all remaining cased characters have lower case. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> translate(self, table): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.translate(table) -> str Return a copy of the string S in which each character has been mapped through the given translation table. The table must implement lookup/indexing via __getitem__, for instance a dictionary or list, mapping Unicode ordinals to Unicode ordinals, strings, or None. If this operation raises LookupError, the character is left untouched. Characters mapped to None are deleted. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> upper(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 将字符串中的小写字母转为大写字母 </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.upper() -> str Return a copy of S converted to uppercase. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> zfill(self, width): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 返回指定长度的字符串，原字符串右对齐，前面填充0 </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.zfill(width) -> str Pad a numeric string S with zeros on the left, to fill a field of the specified width. The string S is never truncated. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__add__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self+value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__contains__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return key in self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__eq__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self==value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__format__</span>(self, format_spec): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.__format__(format_spec) -> str Return a formatted version of S as described by format_spec. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(128, 0, 0, 1)">""</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__getattribute__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return getattr(self, name). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__getitem__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self[key]. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__getnewargs__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ge__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self>=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__gt__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self>value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__hash__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return hash(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__init__</span>(self, value=<span style="color: rgba(128, 0, 0, 1)">''</span>, encoding=None, errors=<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">strict</span><span style="color: rgba(128, 0, 0, 1)">'</span>): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known special case of str.__init__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> str(object='') -> str str(bytes_or_buffer[, encoding[, errors]]) -> str Create a new string object from the given object. If encoding or errors is specified, then the object must expose a data buffer that will be decoded using the given encoding and error handler. Otherwise, returns the result of object.__str__() (if defined) or repr(object). encoding defaults to sys.getdefaultencoding(). errors defaults to 'strict'. # (copied from class doc) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__iter__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Implement iter(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__len__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return len(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__le__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self<=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__lt__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self<value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__mod__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self%value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__mul__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self*value.n </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span><span style="color: rgba(0, 0, 0, 1)"> @staticmethod </span><span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known case of __new__</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__new__</span>(*args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Create and return a new object. See help(type) for accurate signature. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ne__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self!=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__repr__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return repr(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rmod__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value%self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rmul__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self*value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__sizeof__</span>(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.__sizeof__() -> size of S in memory, in bytes </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__str__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return str(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> </pre>
4、列表
list = ['Google', 'baidu', 'taobao']
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | #在列表末尾添加新的对象list = ['Google', 'baidu', 'T']list.append('taobao')print(list) #将指定对象插入列表list = ['Google', 'baidu', 'T','baidu']list.insert(1,"Nick")print(list) #在列表末尾追加另一个序列中的多个值list = ['Google', 'baidu', 'T','baidu']list2 = ['nick','baidu']list.extend(list2)print(list) #统计某个元素在列表中出现的次数list = ['Google', 'baidu', 'T','baidu']a = list.count('baidu')print(a) #从列表中找出某个值第一个匹配项的索引位置list = ['Google', 'baidu', 'T','baidu']a = list.index('baidu')print(a) #移除列表中的一个元素（默认最后一个元素）list = ['Google', 'baidu', 'T','baidu']list.pop()print(list) #移除列表中某个值的第一个匹配项list = ['Google', 'baidu', 'T','baidu']list.remove('baidu')print(list) #清空列表list = ['Google', 'baidu', 'T']list.clear()print(list)#删除指定索引位置list = ['Google', 'baidu', 'T','baidu']del list[2]print(list)list = ['Google', 'baidu', 'T','baidu']del list[1:3] -->顾头不顾尾print(list) #复制列表list = ['Google', 'baidu', 'T']list2 = list.copy()print(list2) #对原列表进行排序list = ['Google', 'baidu', 'T','baidu']list.sort()print(list) #反向列表中元素list = ['Google', 'baidu', 'T','baidu']list.reverse()print(list) |
class list(object): """ list() -> new empty list list(iterable) -> new list initialized from iterable's items """ def append(self, p_object): # real signature unknown; restored from __doc__ """ 用于在列表末尾添加新的对象 list = ['Google', 'baidu', 'T'] list.append('taobao') print(list) """ """ L.append(object) -> None -- append object to end """ passdef clear(self): # real signature unknown; restored from doc
"""
用于清空列表
list = ['Google', 'baidu', 'T']
list.clear()
print(list)
"""
""" L.clear() -> None -- remove all items from L """
passdef copy(self): # real signature unknown; restored from doc
"""
用于复制列表
list = ['Google', 'baidu', 'T']
list2 = list.copy()
print(list2)
"""
""" L.copy() -> list -- a shallow copy of L """
return []def count(self, value): # real signature unknown; restored from doc
"""
统计某个元素在列表中出现的次数
list = ['Google', 'baidu', 'T','baidu']
a = list.count('baidu')
print(a)
"""
""" L.count(value) -> integer -- return number of occurrences of value """
return 0def extend(self, iterable): # real signature unknown; restored from doc
"""
在列表末尾一次性追加另一个序列中的多个值
list = ['Google', 'baidu', 'T','baidu']
list2 = ['nick','baidu']
list.extend(list2)
print(list)
"""
""" L.extend(iterable) -> None -- extend list by appending elements from the iterable """
pass<span style="color: rgba(0, 0, 255, 1)">def</span> index(self, value, start=None, stop=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(0, 0, 0, 1)"> 用于从列表中找出某个值第一个匹配项的索引位置 list </span>= [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">Google</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">baidu</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">T</span><span style="color: rgba(128, 0, 0, 1)">'</span>,<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">baidu</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">] a </span>= list.index(<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">baidu</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">) </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)">(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> L.index(value, [start, [stop]]) -> integer -- return first index of value. Raises ValueError if the value is not present. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> 0def insert(self, index, p_object): # real signature unknown; restored from doc
"""
用于将指定对象插入列表
list = ['Google', 'baidu', 'T','baidu']
list.insert(1,"Nick")
print(list)
"""
""" L.insert(index, object) -- insert object before index """
pass<span style="color: rgba(0, 0, 255, 1)">def</span> pop(self, index=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 移除列表中的一个元素（默认最后一个元素）。 list = ['Google', 'baidu', 'T','baidu'] list.pop() print(list) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> L.pop([index]) -> item -- remove and return item at index (default last). Raises IndexError if list is empty or index is out of range. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> remove(self, value): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 移除列表中某个值的第一个匹配项 list = ['Google', 'baidu', 'T','baidu'] list.remove('baidu') print(list) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> L.remove(value) -> None -- remove first occurrence of value. Raises ValueError if the value is not present. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span>def reverse(self): # real signature unknown; restored from doc
"""
用于反向列表中元素
list = ['Google', 'baidu', 'T','baidu']
list.reverse()
print(list)
"""
""" L.reverse() -- reverse IN PLACE """
passdef sort(self, key=None, reverse=False): # real signature unknown; restored from doc
"""
用于对原列表进行排序
list = ['Google', 'baidu', 'T','baidu']
list.sort()
print(list)
"""
""" L.sort(key=None, reverse=False) -> None -- stable sort IN PLACE """
pass<span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__add__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self+value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__contains__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return key in self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__delitem__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Delete self[key]. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__eq__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self==value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__getattribute__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return getattr(self, name). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__getitem__</span>(self, y): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> x.__getitem__(y) <==> x[y] </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ge__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self>=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__gt__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self>value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__iadd__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Implement self+=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__imul__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Implement self*=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__init__</span>(self, seq=()): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known special case of list.__init__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> list() -> new empty list list(iterable) -> new list initialized from iterable's items # (copied from class doc) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__iter__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Implement iter(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__len__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return len(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__le__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self<=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__lt__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self<value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__mul__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self*value.n </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span><span style="color: rgba(0, 0, 0, 1)"> @staticmethod </span><span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known case of __new__</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__new__</span>(*args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Create and return a new object. See help(type) for accurate signature. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ne__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self!=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__repr__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return repr(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__reversed__</span>(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> L.__reversed__() -- return a reverse iterator over the list </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rmul__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self*value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__setitem__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Set self[key] to value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__sizeof__</span>(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> L.__sizeof__() -- size of L in memory, in bytes </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(128, 0, 128, 1)">__hash__</span> = None</pre>
5、元组（不可修改）
name = ('nick','jenney')
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | #索引name = ('nick','jenney')a = name[0]print(a)#获取指定元素的索引位置name = ('nick','jenney')a = name.index('nick')print(a)#切片name = ('nick','jenney')a = name[0:1]print(a)#计算元素出现的个数name = ('nick','jenney')a = name.count('nick')print(a)#长度name = ('nick','jenney')a = len(name)print(a)#for循环name = ('nick','jenney')for i in name: print(i) |
class tuple(object): """ tuple() -> empty tuple tuple(iterable) -> tuple initialized from iterable's itemsIf the argument is a tuple, the return value is the same object. </span><span style="color: rgba(128, 0, 0, 1)">"""</span>def count(self, value): # real signature unknown; restored from doc
"""
计算元素出现的个数
name = ('nick','jenney')
a = name.count('nick')
print(a)
"""
""" T.count(value) -> integer -- return number of occurrences of value """
return 0</span><span style="color: rgba(0, 0, 255, 1)">def</span> index(self, value, start=None, stop=None): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> 获取指定元素的索引位置 name = ('nick','jenney') a = name.index('nick') print(a) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> T.index(value, [start, [stop]]) -> integer -- return first index of value. Raises ValueError if the value is not present. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> 0 </span><span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__add__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self+value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__contains__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return key in self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__eq__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self==value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__getattribute__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return getattr(self, name). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__getitem__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self[key]. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__getnewargs__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ge__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self>=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__gt__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self>value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__hash__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return hash(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__init__</span>(self, seq=()): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known special case of tuple.__init__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> tuple() -> empty tuple tuple(iterable) -> tuple initialized from iterable's items If the argument is a tuple, the return value is the same object. # (copied from class doc) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__iter__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Implement iter(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__len__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return len(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__le__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self<=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__lt__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self<value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__mul__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self*value.n </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span><span style="color: rgba(0, 0, 0, 1)"> @staticmethod </span><span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known case of __new__</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__new__</span>(*args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Create and return a new object. See help(type) for accurate signature. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ne__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self!=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__repr__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return repr(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rmul__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self*value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span></pre>
6、字典（无序）
user_info = {
"name":"nick",
"age":18,
"job":"pythoner"
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | user_info = { "name":"nick", "age":18, "job":"pythoner"}#根据key获取值a = user_info.get("age")print(a)a = user_info.get("Age",19")print(a)#所有的key 列表a = user_info.keys()print(a)#所有的值，valuesa = user_info.values()print(a)#所有项的列表形式 a = user_info.items()print(a)#获取并在字典中移除user_info.pop('age')print(user_info)#随机并在字典中移除user_info.popitem()user_info.popitem()print(user_info)#清除内容a = user_info.clear()print(a)#浅拷贝a = user_info.copy()print(a)#如果key不存在，则创建，如果存在，则返回已存在的值且不修改 a = user_info.setdefault("age")print(a)user_info.setdefault("cool")print(user_info)#从序列键和值设置为value来创建一个新的字典a = dict.fromkeys(user_info)print(("new dict: %s") % str(a))#更新（两个字典）user_info = { "name":"nick", "age":18, "job":"pythoner"}user_info2 = { "wage":800000000, "drem":"The knife girl"}user_info.update(user_info2)print(user_info) |
class dict(object): """ dict() -> new empty dictionary dict(mapping) -> new dictionary initialized from a mapping object's (key, value) pairs dict(iterable) -> new dictionary initialized as if via: d = {} for k, v in iterable: d[k] = v dict(**kwargs) -> new dictionary initialized with the name=value pairs in the keyword argument list. For example: dict(one=1, two=2) """ def clear(self): # real signature unknown; restored from __doc__ """ 清除内容 user_info = { "name":"nick", "age":18, "job":"pythoner" a = user_info.clear()print(a) """ """ D.clear() -> None. Remove all items from D. """ passdef copy(self): # real signature unknown; restored from doc
"""
浅拷贝
user_info = {
"name":"nick",
"age":18,
"job":"pythoner"
}
a = user_info.copy()
print(a)
"""
""" D.copy() -> a shallow copy of D """
pass@staticmethod </span><span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known case</span>def fromkeys(*args, **kwargs): # real signature unknown
"""
从序列键和值设置为 value 来创建一个新的字典
user_info = {
"name":"nick",
"age":18,
"job":"pythoner"
}
a = dict.fromkeys(user_info)
print(("new dict: %s") % str(a))
"""
""" Returns a new dict with keys from iterable and values equal to value. """
passdef get(self, k, d=None): # real signature unknown; restored from doc
"""
根据 key 获取值，d 是默认值
user_info = {
"name":"nick",
"age":18,
"job":"pythoner"
}
a = user_info.get("age")
print(a)
"""
""" D.get(k[,d]) -> D[k] if k in D, else d. d defaults to None. """
passdef items(self): # real signature unknown; restored from doc
"""
所有项的列表形式
user_info = {
"name":"nick",
"age":18,
"job":"pythoner"
}
a = user_info.items()
print(a)
"""
""" D.items() -> a set-like object providing a view on D's items """
passdef keys(self): # real signature unknown; restored from doc
"""
所有的 key 列表
user_info = {
"name":"nick",
"age":18,
"job":"pythoner"
}
a = user_info.keys()
print(a)
"""
""" D.keys() -> a set-like object providing a view on D's keys """
passdef pop(self, k, d=None): # real signature unknown; restored from doc
"""
获取并在字典中移除
user_info = {
"name":"nick",
"age":18,
"job":"pythoner"
}
user_info.pop('age')
print(user_info)
"""
"""
D.pop(k[,d]) -> v, remove specified key and return the corresponding value.
If key is not found, d is returned if given, otherwise KeyError is raised
"""
passdef popitem(self): # real signature unknown; restored from doc
"""
随机并在字典中移除
user_info = {
"name":"nick",
"age":18,
"job":"pythoner"
}
user_info.popitem()
user_info.popitem()
print(user_info)
"""
"""
D.popitem()-> (k, v), remove and return some (key, value) pair as a
2-tuple; but raise KeyError if D is empty.
"""
passdef setdefault(self, k, d=None): # real signature unknown; restored from doc
"""
如果 key 不存在，则创建，如果存在，则返回已存在的值且不修改
user_info = {
"name":"nick",
"age":18,
"job":"pythoner"
}
a = user_info.setdefault("age")
print(a)
user_info.setdefault("cool")
print(user_info)
"""
""" D.setdefault(k[,d]) -> D.get(k,d), also set D[k]=d if k not in D """
passdef update(self, E=None, **F): # known special case of dict.update
"""
更新（两个字典）
user_info = {
"name":"nick",
"age":18,
"job":"pythoner"
}
user_info2 = {
"wage":800000000,
"drem":"The knife girl"
}
user_info.update(user_info2)
print(user_info)
"""
"""
D.update([E,]**F) -> None. Update D from dict/iterable E and F.
If E is present and has a .keys()method, then does: for k in E: D[k] = E[k]
If E is present and lacks a .keys()method, then does: for k, v in E: D[k] = v
In either case, this is followed by: for k in F: D[k] = F[k]
"""
passdef values(self): # real signature unknown; restored from doc
"""
所有的值，values
user_info = {
"name":"nick",
"age":18,
"job":"pythoner"
}
a = user_info.values()
print(a)
"""
""" D.values() -> an object providing a view on D's values """
pass<span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__contains__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> True if D has a key k, else False. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__delitem__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Delete self[key]. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__eq__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self==value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__getattribute__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return getattr(self, name). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__getitem__</span>(self, y): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> x.__getitem__(y) <==> x[y] </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ge__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self>=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__gt__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self>value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__init__</span>(self, seq=None, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known special case of dict.__init__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> dict() -> new empty dictionary dict(mapping) -> new dictionary initialized from a mapping object's (key, value) pairs dict(iterable) -> new dictionary initialized as if via: d = {} for k, v in iterable: d[k] = v dict(**kwargs) -> new dictionary initialized with the name=value pairs in the keyword argument list. For example: dict(one=1, two=2) # (copied from class doc) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__iter__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Implement iter(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__len__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return len(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__le__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self<=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__lt__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self<value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span><span style="color: rgba(0, 0, 0, 1)"> @staticmethod </span><span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known case of __new__</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__new__</span>(*args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Create and return a new object. See help(type) for accurate signature. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ne__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self!=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__repr__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return repr(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__setitem__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Set self[key] to value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__sizeof__</span>(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> D.__sizeof__() -> size of D in memory, in bytes </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(128, 0, 128, 1)">__hash__</span> = None</pre>
7、set 集合（无序、不重复）
s = set()
a = {'nick','jenny','suo'}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | #添加元素a = {'nick','jenny','suo'}a.add('The knife girl')print(a)#更新a = {'nick','jenny','suo'}b = {'nick','jenny','The knife girl'}a.update(b)print(a)#a中存在。b中不存在，赋给新值a = {'nick','jenny','suo'}b = {'nick','jenny','The knife girl'}set = a.difference(b)print(set)#a中存在。b中不存在,并更新aa = {'nick','jenny','suo'}b = {'nick','jenny','The knife girl'}a.difference_update(b)print(a)#交集,赋给新值a = {'nick','jenny','suo'}b = {'nick','jenny','The knife girl'}set = a.intersection(b)print(set)#交集，更新aa = {'nick','jenny','suo'}b = {'nick','jenny','The knife girl'}a.intersection_update(b)print(a)#对称交集a = {'nick','jenny','suo'}b = {'nick','jenny','The knife girl'}set = a.symmetric_difference(b)print(set)#对称交集，更新aa = {'nick','jenny','suo'}b = {'nick','jenny','The knife girl'}a.symmetric_difference_update(b)print(a)#并集，赋给新值a = {'nick','jenny','suo'}b = {'nick','jenny','The knife girl'}set = a.union(b)print(set)#如果没有交集，返回True，否则返回Falsea = {'nick','jenny','suo'}b = {'nick','jenny','The knife girl'}set = a.isdisjoint(b)print(set)#是否是子序列a = {'nick','jenny','suo'}b = {'nick','jenny'}set = a.issubset(b)print(set)#是否是父序列a = {'nick','jenny','suo'}b = {'nick','jenny'}set = a.issuperset(b)print(set)#移除指定元素，不存在不报错a = {'nick','jenny','suo'}a.discard('suo')print(a)#移除指定元素，不存在则报错a = {'nick','jenny','suo'}a.remove('suo')print(a)a.remove('suo')print(a)#移除随机元素，并赋给新值a = {'nick','jenny','suo'}set = a.pop()print(set)#清空a = {'nick','jenny','suo'}a.clear()print(a) |
class set(object): """ set() -> new empty set object set(iterable) -> new set objectBuild an unordered collection of unique elements. </span><span style="color: rgba(128, 0, 0, 1)">"""</span>def add(self, *args, **kwargs): # real signature unknown
"""添加元素
>>> a = {'nick','jenny','suo'}
>>> a.add('nick')
>>> a
{'suo', 'jenny', 'nick'}
>>> a.add('love')
>>> a
{'suo', 'love', 'jenny', 'nick'}
"""
"""
Add an element to a set.This has no effect if the element is already present. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span>def clear(self, *args, **kwargs): # real signature unknown
"""清除内容
>>> a = {'nick','jenny','suo'}
>>> a.clear()
>>> a
set()
"""
""" Remove all elements from this set. """
passdef copy(self, *args, **kwargs): # real signature unknown
"""浅拷贝
>>> a = {'nick','jenny','suo'}
>>> b = a.copy()
>>> b
{'suo', 'jenny', 'nick'}
"""
""" Return a shallow copy of a set. """
passdef difference(self, *args, **kwargs): # real signature unknown
"""A 中存在，B 中不存在
>>> a = {'nick','jenny','suo'}
>>> b = {'nick','jenny','The knife girl'}
>>> a.difference(b)
{'suo'}
"""
"""
Return the difference of two or more sets as a new set.(i.e. all elements that are in this set but not the others.) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span>def difference_update(self, *args, **kwargs): # real signature unknown
"""从当前集合中删除和 B 中相同的元素
>>> a = {'nick','jenny','suo'}
>>> b = {'nick','jenny','The knife girl'}
>>> a.difference_update(b)
>>> a
{'suo'}
"""
""" Remove all elements of another set from this set. """
passdef discard(self, *args, **kwargs): # real signature unknown
"""移除指定元素，不存在不报错
>>> a = {'nick','jenny','suo'}
>>> a.discard('suo')
>>> a
{'jenny', 'nick'}
>>> a.discard('The knife girl')
>>> a
{'jenny', 'nick'}
"""
"""
Remove an element from a set if it is a member.If the element is not a member, do nothing. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span>def intersection(self, *args, **kwargs): # real signature unknown
"""a 与 b 的交集
>>> a = {'nick','jenny','suo'}
>>> b = {'nick','jenny','The knife girl'}
>>> a.intersection(b)
{'jenny', 'nick'}
"""
"""
Return the intersection of two sets as a new set.(i.e. all elements that are in both sets.) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span>def intersection_update(self, *args, **kwargs): # real signature unknown
"""取交集并更更新到 A 中
>>> a = {'nick','jenny','suo'}
>>> b = {'nick','jenny','The knife girl'}
>>> a.intersection_update(b)
>>> a
{'jenny', 'nick'}
"""
""" Update a set with the intersection of itself and another. """
passdef isdisjoint(self, *args, **kwargs): # real signature unknown
"""如果没有交集，返回 True，否则返回 False
>>> a = {'nick','jenny','suo'}
>>> b = {'nick','jenny','The knife girl'}
>>> a.isdisjoint(b)
False
"""
""" Return True if two sets have a null intersection. """
passdef issubset(self, *args, **kwargs): # real signature unknown
"""是否是子序列
>>> a = {'nick','jenny','suo'}
>>> b = {'nick','jenny'}
>>> b.issubset(a)
True
>>> a.issubset(b)
False
"""
""" Report whether another set contains this set. """
passdef issuperset(self, *args, **kwargs): # real signature unknown
"""是否是父序列
>>> a = {'nick','jenny','suo'}
>>> b = {'nick','jenny'}
>>> a.issuperset(b)
True
>>> b.issuperset(a)
False
"""
""" Report whether this set contains another set. """
passdef pop(self, *args, **kwargs): # real signature unknown
"""移除元素
>>> a = {'nick','jenny','suo'}
>>> a.pop()
'suo'
>>> a
{'jenny', 'nick'}
"""
"""
Remove and return an arbitrary set element.
Raises KeyError if the set is empty.
"""
passdef remove(self, *args, **kwargs): # real signature unknown
"""移除指定元素，不存在报错
>>> a = {'nick','jenny','suo'}
>>> a.remove('nick')
>>> a
{'suo', 'jenny'}
>>> a.remove('The knife girl')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
KeyError: 'The knife girl'
>>>
"""
"""
Remove an element from a set; it must be a member.If the element is not a member, raise a KeyError. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span>def symmetric_difference(self, *args, **kwargs): # real signature unknown
"""对称交集
>>> a = {'nick','jenny','suo'}
>>> b = {'nick','jenny','The knife girl'}
>>> a.symmetric_difference(b)
{'suo', 'The knife girl'}
"""
"""
Return the symmetric difference of two sets as a new set.(i.e. all elements that are in exactly one of the sets.) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span>def symmetric_difference_update(self, *args, **kwargs): # real signature unknown
"""对称交集，并更新到 a 中
>>> a = {'nick','jenny','suo'}
>>> b = {'nick','jenny','The knife girl'}
>>> a.symmetric_difference_update(b)
>>> a
{'suo', 'The knife girl'}
"""
""" Update a set with the symmetric difference of itself and another. """
passdef union(self, *args, **kwargs): # real signature unknown
"""并集
>>> a = {'nick','jenny','suo'}
>>> b = {'nick','jenny','The knife girl'}
>>> a.union(b)
{'suo', 'jenny', 'nick', 'The knife girl'}
"""
"""
Return the union of sets as a new set.(i.e. all elements that are in either set.) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span>def update(self, *args, **kwargs): # real signature unknown
"""更新
>>> a = {'nick','jenny','suo'}
>>> b = {'nick','jenny','The knife girl'}
>>> a.update(b)
>>> a
{'suo', 'jenny', 'nick', 'The knife girl'}
>>> b
{'jenny', 'nick', 'The knife girl'}
"""
""" Update a set with the union of itself and others. """
pass<span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__and__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self&value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__contains__</span>(self, y): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> x.__contains__(y) <==> y in x. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__eq__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self==value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__getattribute__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return getattr(self, name). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ge__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self>=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__gt__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self>value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__iand__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self&=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__init__</span>(self, seq=()): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known special case of set.__init__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> set() -> new empty set object set(iterable) -> new set object Build an unordered collection of unique elements. # (copied from class doc) </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ior__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self|=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__isub__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self-=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__iter__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Implement iter(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ixor__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self^=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__len__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return len(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__le__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self<=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__lt__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self<value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span><span style="color: rgba(0, 0, 0, 1)"> @staticmethod </span><span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> known case of __new__</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__new__</span>(*args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Create and return a new object. See help(type) for accurate signature. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ne__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self!=value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__or__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self|value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rand__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value&self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__reduce__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return state information for pickling. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__repr__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return repr(self). </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__ror__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value|self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rsub__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value-self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__rxor__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return value^self. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__sizeof__</span>(self): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown; restored from __doc__</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> S.__sizeof__() -> size of S in memory, in bytes </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__sub__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self-value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(0, 0, 255, 1)">def</span> <span style="color: rgba(128, 0, 128, 1)">__xor__</span>(self, *args, **kwargs): <span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)"> real signature unknown</span> <span style="color: rgba(128, 0, 0, 1)">"""</span><span style="color: rgba(128, 0, 0, 1)"> Return self^value. </span><span style="color: rgba(128, 0, 0, 1)">"""</span> <span style="color: rgba(0, 0, 255, 1)">pass</span> <span style="color: rgba(128, 0, 128, 1)">__hash__</span> = None</pre>
frozenset
是冻结的集合，它是不可变的，存在哈希值，好处是它可以作为字典的 key，也可以作为其它集合的元素。缺点是一旦创建便不能更改，没有 add，remove 方法。
>>> name = frozenset({"suoning"})
>>> name
frozenset({'suoning'})
>>>
其他 |
1、for 循环
用户按照顺序循环可迭代对象中的内容
1 2 3 | name = ('nick','jenney')for i in name: print(i) |
2、enumrate
为可迭代的对象添加序号
1 2 3 4 5 6 7 | user_info = { "name":"nick", "age":18, "job":"pythoner"}for k,v in enumerate(user_info,1): print(k,v,user_info.get(v)) |
3、range 和 xrange
指定范围，生成指定的数字
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | #python 2.7 版本print range(1, 10)# 结果：[1, 2, 3, 4, 5, 6, 7, 8, 9] print range(1, 10, 2)# 结果：[1, 3, 5, 7, 9] print range(30, 0, -2)# 结果：[30, 28, 26, 24, 22, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2]#python 3.5 版本a = range(10)print(a)#结果：range(0, 10) |
4、编码与进制转换
- utf-8 与 gbk 编码转换
- 进制的转换
- 把自己名字用进制表示出来
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | name = "索宁"a = bytes(name,encoding='utf-8')print(a)for i in a: print(i,bin(i))#输出结果（utf-8 三个字节表示一个汉字）b'\xe7\xb4\xa2\xe5\xae\x81'231 0b11100111180 0b10110100162 0b10100010229 0b11100101174 0b10101110129 0b10000001b = bytes(name,encoding='gbk')print(b)for i in b: print(i,bin(i))#输出结果（gbk 两个字节表示一个汉字）b'\xcb\xf7\xc4\xfe'203 0b11001011247 0b11110111196 0b11000100254 0b11111110 |