zlib压缩

小场景：需要对传输的字节进行压缩传输 

解压缩的一席而基础知识介绍：

压缩字符串和元字符串对比测试： 

import zlib
import this
import os

def main():
    # python_zen = this.s  # 获取Python之禅的Unicode字符串
    python_zen ="123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910"  # 获取Python之禅的Unicode字符串
    com_bytes = zlib.compress(python_zen.encode('utf-8'))  # 编码为UTF-8格式的字节进行压缩
    print("开始：",com_bytes)
    size = len(com_bytes)
    print("字节数：",size)
    print("原始字节：",len(python_zen.encode()))
    decom_bytes = zlib.decompress(com_bytes)  # 将压缩的字节进行解压缩
    print("结束：",decom_bytes.decode('utf-8'))  # 将解压缩的字节进行UTF-8解码得到Unicode字符串


if __name__ == '__main__':
    main()

压缩后写入文件和未压缩比对： 

import this
import zlib


def main():
    # python_zen = this.s  # 获取字符
    python_zen = "123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910123456789101234567891012345678910"  # 获取字符
    with open('data.txt', 'wb') as f:  # 使用文件写入的上下文环境
        f.write(python_zen.encode('utf-8'))  # 写入未压缩的字节数据

    with open('com_data.txt', 'wb') as f:  # 使用文件写入上下文环境
        com_zen = zlib.compress(python_zen.encode('utf-8'))  # 将字符串编码并压缩
        f.write(com_zen)  # 写入压缩后的字节数据


if __name__ == '__main__':
    main()