int内部功能介绍

Posted 2020-08-08 欧阳逸轩

int内部功能详解：

class int(object):
    """
    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)
    4
    """

    def bit_length(self):  # real signature unknown; restored from __doc__
        """
        int.bit_length() -> int

        Number of bits necessary to represent self in binary.
        >>> bin(37)
        ‘0b100101‘
        >>> (37).bit_length()
        6
        """
        return 0
        """ 返回表示该数字的时占用的最少位数 """

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

    def __abs__(self, *args, **kwargs):  # real signature unknown
        """ abs(self) """
        pass
        """绝对值
        >>> a = -14
        >>> a.__abs__()
        14
        >>> abs(a) 这种方法实现背后也是调用__abs__()方法
        14"""

    def __add__(self, *args, **kwargs):  # real signature unknown
        """ Return self+value. """
        pass

    def __and__(self, *args, **kwargs):  # real signature unknown
        """ Return self&value. """
        pass

    def __bool__(self, *args, **kwargs):  # real signature unknown
        """ self != 0 """
        pass

    def __ceil__(self, *args, **kwargs):  # real signature unknown
        """ Ceiling of an Integral returns itself. """
        pass

    def __divmod__(self, *args, **kwargs):  # real signature unknown
        """ Return divmod(self, value). """
        pass
        """    相除，得到商(self)和余数(value)组成的元组
               网页中显示分页的时候使用，
           >>> age = 18
        >>> age.__divmod__(7)
        (2, 4)
        """

    def __eq__(self, *args, **kwargs):  # real signature unknown
        """ Return self==value. """
        pass

    def __float__(self, *args, **kwargs):  # real signature unknown
        """ float(self) """
        pass
        """转换为浮点类型
        >>> a = int(16)
        >>> b = a.__float__()
        >>> type(a)
        <class ‘int‘>
        >>> type(b)
        <class ‘float‘>
        """

    def __floordiv__(self, *args, **kwargs):  # real signature unknown
        """ Return self//value. """
        pass
        """地板除
        >>> a = 13
        >>> b = 4
        >>> a//b
        3
        >>> a.__floordiv__(b)
        3
        """

    def __floor__(self, *args, **kwargs):  # real signature unknown
        """ Flooring an Integral returns itself. """
        pass

    def __getattribute__(self, *args, **kwargs):  # real signature unknown
        """ Return getattr(self, name). """
        pass

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

    def __ge__(self, *args, **kwargs):  # real signature unknown
        """ Return self>=value. """
        pass

    def __gt__(self, *args, **kwargs):  # real signature unknown
        """ Return self>value. """
        pass

    def __hash__(self, *args, **kwargs):  # real signature unknown
        """ Return hash(self). """
        pass
        """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。"""

    def __index__(self, *args, **kwargs):  # real signature unknown
        """ Return self converted to an integer, if self is suitable for use as an index into a list. """
        pass

    def __init__(self, x, base=10):  # known special case of int.__init__

        """
        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)
        4
        # (copied from class doc)
        """
        pass
        """构造方法，执行 x = 123 或 x = int(10) 时，自动调用"""

    def __int__(self, *args, **kwargs):  # real signature unknown
        """ int(self) """
        pass
        """转换为整数
        >>> a = 18.2
        >>> a.__int__()
        18
        """
    def __invert__(self, *args, **kwargs):  # real signature unknown
        """ ~self """
        pass

    def __le__(self, *args, **kwargs):  # real signature unknown
        """ Return self<=value. """
        pass

    def __lshift__(self, *args, **kwargs):  # real signature unknown
        """ Return self<<value. """
        pass

    def __lt__(self, *args, **kwargs):  # real signature unknown
        """ Return self<value. """
        pass

    def __mod__(self, *args, **kwargs):  # real signature unknown
        """ Return self%value. """
        pass

    def __mul__(self, *args, **kwargs):  # real signature unknown
        """ Return self*value. """
        pass

    def __neg__(self, *args, **kwargs):  # real signature unknown
        """ -self """
        pass

    @staticmethod  # known case of __new__
    def __new__(*args, **kwargs):  # real signature unknown
        """ Create and return a new object.  See help(type) for accurate signature. """
        pass

    def __ne__(self, *args, **kwargs):  # real signature unknown
        """ Return self!=value. """
        pass

    def __or__(self, *args, **kwargs):  # real signature unknown
        """ Return self|value. """
        pass

    def __pos__(self, *args, **kwargs):  # real signature unknown
        """ +self """
        pass

    def __pow__(self, *args, **kwargs):  # real signature unknown
        """ Return pow(self, value, mod). """
        pass
        """幂，次方
        >>> a = 3
        >>> c = a.__pow__(3)
        >>> c
        27
        >>> b = a * a * a
        >>> b
        27
        """

        # 例如：__radd__中的r代表从右往左执行
    def __radd__(self, *args, **kwargs):  # real signature unknown
        """ Return value+self. """
        pass

    def __rand__(self, *args, **kwargs):  # real signature unknown
        """ Return value&self. """
        pass

    def __rdivmod__(self, *args, **kwargs):  # real signature unknown
        """ Return divmod(value, self). """
        pass

    def __repr__(self, *args, **kwargs):  # real signature unknown
        """ Return repr(self). """
        pass
        """转化为解释器可读取的形式 """

    def __rfloordiv__(self, *args, **kwargs):  # real signature unknown
        """ Return value//self. """
        pass

    def __rlshift__(self, *args, **kwargs):  # real signature unknown
        """ Return value<<self. """
        pass

    def __rmod__(self, *args, **kwargs):  # real signature unknown
        """ Return value%self. """
        pass

    def __rmul__(self, *args, **kwargs):  # real signature unknown
        """ Return value*self. """
        pass

    def __ror__(self, *args, **kwargs):  # real signature unknown
        """ Return value|self. """
        pass

    def __round__(self, *args, **kwargs):  # real signature unknown
        """
        Rounding an Integral returns itself.
        Rounding with an ndigits argument also returns an integer.
        """
        pass

    def __rpow__(self, *args, **kwargs):  # real signature unknown
        """ Return pow(value, self, mod). """
        pass

    def __rrshift__(self, *args, **kwargs):  # real signature unknown
        """ Return value>>self. """
        pass

    def __rshift__(self, *args, **kwargs):  # real signature unknown
        """ Return self>>value. """
        pass

    def __rsub__(self, *args, **kwargs):  # real signature unknown
        """ Return value-self. """
        pass

    def __rtruediv__(self, *args, **kwargs):  # real signature unknown
        """ Return value/self. """
        pass

    def __rxor__(self, *args, **kwargs):  # real signature unknown
        """ Return value^self. """
        pass
        # 例如：__radd__中的r代表从右往左执行

    def __sizeof__(self, *args, **kwargs):  # real signature unknown
        """ Returns size in memory, in bytes """
        pass

    def __str__(self, *args, **kwargs):  # real signature unknown
        """ Return str(self). """
        pass
        """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"""

    def __sub__(self, *args, **kwargs):  # real signature unknown
        """ Return self-value. """
        pass

    def __truediv__(self, *args, **kwargs):  # real signature unknown
        """ Return self/value. """
        pass

    def __trunc__(self, *args, **kwargs):  # real signature unknown
        """ Truncating an Integral returns itself. """
        pass
        """ 返回数值被截取为整形的值，在整形中无意义 """

    def __xor__(self, *args, **kwargs):  # real signature unknown
        """ Return self^value. """
        pass

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

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

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

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