https://blog.csdn.net/weixin_41207499/article/details/80724826
https://blog.csdn.net/weixin_41207499/article/details/80721410
https://blog.csdn.net/weixin_41207499/article/details/80731713
flask中多线程和线程隔离技术和flask核心机制
原文：https://www.cnblogs.com/shengs/p/12096741.html
