zoukankan      html  css  js  c++  java
  • int-整数+bool-布尔功能介绍

    int
    #创建和转换 
    #a = 123
    #a = int(123)
    #转换
    #Age = “22”
    #Age = int(22)



    #1.当前整数用二进制表示的最小位数
    # age = 50
    # v = age.
    # print(v)
    举例
    
    
        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
    bit_length
    #2.获取当前数据的字节表示
    # age = 15
    # v = age.to_bytes(4,b
    # v1 = age.to_bytes(4,
    # print(v)
    # print(v1)
    #执行结果
    #b'x00x00x00x0f'
    # b'x0fx00x00x00'
    举例
    
    
     def to_bytes(self, length, byteorder, *args, **kwargs): # real signature unknown; NOTE: unreliably restored from __doc__ 
            """
            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.
            """
            pass
    to_bytes

     布尔

    0 false 其他是true

    空 false 其他是true

    
    
    
    
  • 相关阅读:
    js --- for in 和 for of
    vue -- config index.js 配置文件详解
    vue -- 脚手架之webpack.dev.conf.js
    vue --- 解读vue的中webpack.base.config.js
    vue 引入第三方字体包
    js call 和 apply
    vue2.0中的$router 和 $route的区别
    懒加载js实现和优化
    vue的指令在webstrom下报错
    BFC的布局规则和触发条件
  • 原文地址:https://www.cnblogs.com/lazyball/p/6829059.html
Copyright © 2011-2022 走看看