Given an integer, write an algorithm to convert it to hexadecimal. For negative integer, two’s complement method is used. Note: All letters in hexadecimal (a-f) must be in lowercase. The hexadecimal string must not contain extra leading 0s. If the nu
最简单的方法: 利用javax.xml.bind包下的DatatypeConverter printHexBinary public static java.lang.String printHexBinary(byte[] val) Converts an array of bytes into a string. Parameters: val - An array of bytes Returns: A string containing a lexical representation
参考:中文维基 二进制 位操作(wiki) Byte字节 互联网数据处理:Base64数据编码 Python的模块Base64 16进制简介 python: bytes对象 字符集介绍:ascii 二进制简介: In mathematics and digital electronics, a binary number is a number expressed in the base-2 numberal system or binary numeral system, which uses