参考链接：
https://www.cnblogs.com/huxi/archive/2010/07/04/1771073.html
https://www.cnblogs.com/shenjianping/p/11647473.html
https://docs.python.org/zh-cn/3.8/library/index.html #Python 标准库
xwupiaomiao 2019-12-02 16:48 原文
参考链接：
https://www.cnblogs.com/huxi/archive/2010/07/04/1771073.html
https://www.cnblogs.com/shenjianping/p/11647473.html
https://docs.python.org/zh-cn/3.8/library/index.html #Python 标准库