Python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
class int(object):
"""
int(x=0) -> int or long
int(x, base=10) -> int or long

Convert a number or string to an integer, or return 0 if no arguments
are given. If x is floating point, the conversion truncates towards zero.
If x is outside the integer range, the function returns a long instead.

If x is not a number or if base is given, then x must be a string or
Unicode object 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)
4
"""
def bit_length(self): 
""" 返回表示该数字的时占用的最少位数 """
"""
int.bit_length() -> int

Number of bits necessary to represent self in binary.
>>> bin(37)
‘0b100101‘
>>> (37).bit_length()
6
"""
return 0

def conjugate(self, *args, **kwargs): # real signature unknown
""" 返回该复数的共轭复数 """
""" Returns self, the complex conjugate of any int. """
pass

def __abs__(self):
""" 返回绝对值 """
""" x.__abs__()  abs(x) """
pass

def __add__(self, y):
""" x.__add__(y)  x+y """
pass

def __and__(self, y):
""" x.__and__(y)  x&y """
pass

def __cmp__(self, y): 
""" 比较两个数大小 """
""" x.__cmp__(y)  cmp(x,y) """
pass

def __coerce__(self, y):
""" 强制生成一个元组 """ 
""" x.__coerce__(y)  coerce(x, y) """
pass

def __divmod__(self, y): 
""" 相除，得到商和余数组成的元组 """ 
""" x.__divmod__(y)  divmod(x, y) """
pass

def __div__(self, y): 
""" x.__div__(y)  x/y """
pass

def __float__(self): 
""" 转换为浮点类型 """ 
""" x.__float__()  float(x) """
pass

def __floordiv__(self, y): 
""" x.__floordiv__(y)  x//y """
pass

def __format__(self, *args, **kwargs): # real signature unknown
pass

def __getattribute__(self, name): 
""" x.__getattribute__(‘name‘)  x.name """
pass

def __getnewargs__(self, *args, **kwargs): # real signature unknown
""" 内部调用 __new__方法或创建对象时传入参数使用 """ 
pass

def __hash__(self): 
"""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。"""
""" x.__hash__()  hash(x) """
pass

def __hex__(self): 
""" 返回当前数的 十六进制 表示 """ 
""" x.__hex__()  hex(x) """
pass

def __index__(self): 
""" 用于切片，数字无意义 """
""" x[y:z]  x[y.__index__():z.__index__()] """
pass

def __init__(self, x, base=10): # known special case of int.__init__
""" 构造方法，执行 x = 123 或 x = int(10) 时，自动调用，暂时忽略 """ 
"""
int(x=0) -> int or long
int(x, base=10) -> int or long

Convert a number or string to an integer, or return 0 if no arguments
are given. If x is floating point, the conversion truncates towards zero.
If x is outside the integer range, the function returns a long instead.

If x is not a number or if base is given, then x must be a string or
Unicode object 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)
4
# (copied from class doc)
"""
pass

def __int__(self): 
""" 转换为整数 """ 
""" x.__int__()  int(x) """
pass

def __invert__(self): 
""" x.__invert__()  ~x """
pass

def __long__(self): 
""" 转换为长整数 """ 
""" x.__long__()  long(x) """
pass

def __lshift__(self, y): 
""" x.__lshift__(y)  x"""
pass

def __mod__(self, y): 
""" x.__mod__(y)  x%y """
pass

def __mul__(self, y): 
""" x.__mul__(y)  x*y """
pass

def __neg__(self): 
""" x.__neg__()  -x """
pass

@staticmethod # known case of __new__
def __new__(S, *more): 
""" T.__new__(S, ...) -> a new object with type S, a subtype of T """
pass

def __nonzero__(self): 
""" x.__nonzero__()  x != 0 """
pass

def __oct__(self): 
""" 返回改值的 八进制 表示 """ 
""" x.__oct__()  oct(x) """
pass

def __or__(self, y): 
""" x.__or__(y)  x|y """
pass

def __pos__(self): 
""" x.__pos__()  +x """
pass

def __pow__(self, y, z=None): 
""" 幂，次方 """ 
""" x.__pow__(y[, z])  pow(x, y[, z]) """
pass

def __radd__(self, y): 
""" x.__radd__(y)  y+x """
pass

def __rand__(self, y): 
""" x.__rand__(y)  y&x """
pass

def __rdivmod__(self, y): 
""" x.__rdivmod__(y)  divmod(y, x) """
pass

def __rdiv__(self, y): 
""" x.__rdiv__(y)  y/x """
pass

def __repr__(self): 
"""转化为解释器可读取的形式 """
""" x.__repr__()  repr(x) """
pass

def __str__(self): 
"""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"""
""" x.__str__()  str(x) """
pass

def __rfloordiv__(self, y): 
""" x.__rfloordiv__(y)  y//x """
pass

def __rlshift__(self, y): 
""" x.__rlshift__(y)  y"""
pass

def __rmod__(self, y): 
""" x.__rmod__(y)  y%x """
pass

def __rmul__(self, y): 
""" x.__rmul__(y)  y*x """
pass

def __ror__(self, y): 
""" x.__ror__(y)  y|x """
pass

def __rpow__(self, x, z=None): 
""" y.__rpow__(x[, z])  pow(x, y[, z]) """
pass

def __rrshift__(self, y): 
""" x.__rrshift__(y)  y>>x """
pass

def __rshift__(self, y): 
""" x.__rshift__(y)  x>>y """
pass

def __rsub__(self, y): 
""" x.__rsub__(y)  y-x """
pass

def __rtruediv__(self, y): 
""" x.__rtruediv__(y)  y/x """
pass

def __rxor__(self, y): 
""" x.__rxor__(y)  y^x """
pass

def __sub__(self, y): 
""" x.__sub__(y)  x-y """
pass

def __truediv__(self, y): 
""" x.__truediv__(y)  x/y """
pass

def __trunc__(self, *args, **kwargs): 
""" 返回数值被截取为整形的值，在整形中无意义 """
pass

def __xor__(self, y): 
""" x.__xor__(y)  x^y """
pass

denominator = property(lambda self: object(), lambda self, v: None, lambda self: None) # default
""" 分母 = 1 """
"""the denominator of a rational number in lowest terms"""

imag = property(lambda self: object(), lambda self, v: None, lambda self: None) # default
""" 虚数，无意义 """
"""the imaginary part of a complex number"""

numerator = property(lambda self: object(), lambda self, v: None, lambda self: None) # default
""" 分子 = 数字大小 """
"""the numerator of a rational number in lowest terms"""

real = property(lambda self: object(), lambda self, v: None, lambda self: None) # default
""" 实属，无意义 """
"""the real part of a complex number"""

int