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Python 基本数据类型
一运算符
1算数运算符
2.比较运算符
3.赋值运算符
4.逻辑运算符
二.基本数据类型
1.数字
数字 age = 123
1 复制代码 2 class int(object): 3 """ 4 int(x=0) -> int or long 5 int(x, base=10) -> int or long 6 7 Convert a number or string to an integer, or return 0 if no arguments 8 are given. If x is floating point, the conversion truncates towards zero. 9 If x is outside the integer range, the function returns a long instead. 10 11 If x is not a number or if base is given, then x must be a string or 12 Unicode object representing an integer literal in the given base. The 13 literal can be preceded by ‘+‘ or ‘-‘ and be surrounded by whitespace. 14 The base defaults to 10. Valid bases are 0 and 2-36. Base 0 means to 15 interpret the base from the string as an integer literal. 16 >>> int(‘0b100‘, base=0) 17 4 18 """ 19 def bit_length(self): 20 """ 返回表示该数字的时占用的最少位数 """ 21 """ 22 int.bit_length() -> int 23 24 Number of bits necessary to represent self in binary. 25 >>> bin(37) 26 ‘0b100101‘ 27 >>> (37).bit_length() 28 6 29 """ 30 return 0 31 32 def conjugate(self, *args, **kwargs): # real signature unknown 33 """ 返回该复数的共轭复数 """ 34 """ Returns self, the complex conjugate of any int. """ 35 pass 36 37 def __abs__(self): 38 """ 返回绝对值 """ 39 """ x.__abs__() <==> abs(x) """ 40 pass 41 42 def __add__(self, y): 43 """ x.__add__(y) <==> x+y """ 44 pass 45 46 def __and__(self, y): 47 """ x.__and__(y) <==> x&y """ 48 pass 49 50 def __cmp__(self, y): 51 """ 比较两个数大小 """ 52 """ x.__cmp__(y) <==> cmp(x,y) """ 53 pass 54 55 def __coerce__(self, y): 56 """ 强制生成一个元组 """ 57 """ x.__coerce__(y) <==> coerce(x, y) """ 58 pass 59 60 def __divmod__(self, y): 61 """ 相除,得到商和余数组成的元组 """ 62 """ x.__divmod__(y) <==> divmod(x, y) """ 63 pass 64 65 def __div__(self, y): 66 """ x.__div__(y) <==> x/y """ 67 pass 68 69 def __float__(self): 70 """ 转换为浮点类型 """ 71 """ x.__float__() <==> float(x) """ 72 pass 73 74 def __floordiv__(self, y): 75 """ x.__floordiv__(y) <==> x//y """ 76 pass 77 78 def __format__(self, *args, **kwargs): # real signature unknown 79 pass 80 81 def __getattribute__(self, name): 82 """ x.__getattribute__(‘name‘) <==> x.name """ 83 pass 84 85 def __getnewargs__(self, *args, **kwargs): # real signature unknown 86 """ 内部调用 __new__方法或创建对象时传入参数使用 """ 87 pass 88 89 def __hash__(self): 90 """如果对象object为哈希表类型,返回对象object的哈希值。哈希值为整数。在字典查找中,哈希值用于快速比较字典的键。两个数值如果相等,则哈希值也相等。""" 91 """ x.__hash__() <==> hash(x) """ 92 pass 93 94 def __hex__(self): 95 """ 返回当前数的 十六进制 表示 """ 96 """ x.__hex__() <==> hex(x) """ 97 pass 98 99 def __index__(self): 100 """ 用于切片,数字无意义 """ 101 """ x[y:z] <==> x[y.__index__():z.__index__()] """ 102 pass 103 104 def __init__(self, x, base=10): # known special case of int.__init__ 105 """ 构造方法,执行 x = 123 或 x = int(10) 时,自动调用,暂时忽略 """ 106 """ 107 int(x=0) -> int or long 108 int(x, base=10) -> int or long 109 110 Convert a number or string to an integer, or return 0 if no arguments 111 are given. If x is floating point, the conversion truncates towards zero. 112 If x is outside the integer range, the function returns a long instead. 113 114 If x is not a number or if base is given, then x must be a string or 115 Unicode object representing an integer literal in the given base. The 116 literal can be preceded by ‘+‘ or ‘-‘ and be surrounded by whitespace. 117 The base defaults to 10. Valid bases are 0 and 2-36. Base 0 means to 118 interpret the base from the string as an integer literal. 119 >>> int(‘0b100‘, base=0) 120 4 121 # (copied from class doc) 122 """ 123 pass 124 125 def __int__(self): 126 """ 转换为整数 """ 127 """ x.__int__() <==> int(x) """ 128 pass 129 130 def __invert__(self): 131 """ x.__invert__() <==> ~x """ 132 pass 133 134 def __long__(self): 135 """ 转换为长整数 """ 136 """ x.__long__() <==> long(x) """ 137 pass 138 139 def __lshift__(self, y): 140 """ x.__lshift__(y) <==> x<<y """ 141 pass 142 143 def __mod__(self, y): 144 """ x.__mod__(y) <==> x%y """ 145 pass 146 147 def __mul__(self, y): 148 """ x.__mul__(y) <==> x*y """ 149 pass 150 151 def __neg__(self): 152 """ x.__neg__() <==> -x """ 153 pass 154 155 @staticmethod # known case of __new__ 156 def __new__(S, *more): 157 """ T.__new__(S, ...) -> a new object with type S, a subtype of T """ 158 pass 159 160 def __nonzero__(self): 161 """ x.__nonzero__() <==> x != 0 """ 162 pass 163 164 def __oct__(self): 165 """ 返回改值的 八进制 表示 """ 166 """ x.__oct__() <==> oct(x) """ 167 pass 168 169 def __or__(self, y): 170 """ x.__or__(y) <==> x|y """ 171 pass 172 173 def __pos__(self): 174 """ x.__pos__() <==> +x """ 175 pass 176 177 def __pow__(self, y, z=None): 178 """ 幂,次方 """ 179 """ x.__pow__(y[, z]) <==> pow(x, y[, z]) """ 180 pass 181 182 def __radd__(self, y): 183 """ x.__radd__(y) <==> y+x """ 184 pass 185 186 def __rand__(self, y): 187 """ x.__rand__(y) <==> y&x """ 188 pass 189 190 def __rdivmod__(self, y): 191 """ x.__rdivmod__(y) <==> divmod(y, x) """ 192 pass 193 194 def __rdiv__(self, y): 195 """ x.__rdiv__(y) <==> y/x """ 196 pass 197 198 def __repr__(self): 199 """转化为解释器可读取的形式 """ 200 """ x.__repr__() <==> repr(x) """ 201 pass 202 203 def __str__(self): 204 """转换为人阅读的形式,如果没有适于人阅读的解释形式的话,则返回解释器课阅读的形式""" 205 """ x.__str__() <==> str(x) """ 206 pass 207 208 def __rfloordiv__(self, y): 209 """ x.__rfloordiv__(y) <==> y//x """ 210 pass 211 212 def __rlshift__(self, y): 213 """ x.__rlshift__(y) <==> y<<x """ 214 pass 215 216 def __rmod__(self, y): 217 """ x.__rmod__(y) <==> y%x """ 218 pass 219 220 def __rmul__(self, y): 221 """ x.__rmul__(y) <==> y*x """ 222 pass 223 224 def __ror__(self, y): 225 """ x.__ror__(y) <==> y|x """ 226 pass 227 228 def __rpow__(self, x, z=None): 229 """ y.__rpow__(x[, z]) <==> pow(x, y[, z]) """ 230 pass 231 232 def __rrshift__(self, y): 233 """ x.__rrshift__(y) <==> y>>x """ 234 pass 235 236 def __rshift__(self, y): 237 """ x.__rshift__(y) <==> x>>y """ 238 pass 239 240 def __rsub__(self, y): 241 """ x.__rsub__(y) <==> y-x """ 242 pass 243 244 def __rtruediv__(self, y): 245 """ x.__rtruediv__(y) <==> y/x """ 246 pass 247 248 def __rxor__(self, y): 249 """ x.__rxor__(y) <==> y^x """ 250 pass 251 252 def __sub__(self, y): 253 """ x.__sub__(y) <==> x-y """ 254 pass 255 256 def __truediv__(self, y): 257 """ x.__truediv__(y) <==> x/y """ 258 pass 259 260 def __trunc__(self, *args, **kwargs): 261 """ 返回数值被截取为整形的值,在整形中无意义 """ 262 pass 263 264 def __xor__(self, y): 265 """ x.__xor__(y) <==> x^y """ 266 pass 267 268 denominator = property(lambda self: object(), lambda self, v: None, lambda self: None) # default 269 """ 分母 = 1 """ 270 """the denominator of a rational number in lowest terms""" 271 272 imag = property(lambda self: object(), lambda self, v: None, lambda self: None) # default 273 """ 虚数,无意义 """ 274 """the imaginary part of a complex number""" 275 276 numerator = property(lambda self: object(), lambda self, v: None, lambda self: None) # default 277 """ 分子 = 数字大小 """ 278 """the numerator of a rational number in lowest terms""" 279 280 real = property(lambda self: object(), lambda self, v: None, lambda self: None) # default 281 """ 实属,无意义 """ 282 """the real part of a complex number"""
indetationError 缩进错误
一个等号是赋值,两个等号是比较。
2.字符串
a1=‘abs‘
a2="sdf"
a3="""nsdfis"""
3.布尔值
True/False
Python 基本数据类型
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