您好，请问您的博客或知乎文章是哪篇呢，能否提供链接，谢谢

[letmeheard]

[zwdnet]

https://zwdnet.github.io/2020/03/07/SIR%E6%A8%A1%E5%9E%8B%E9%A2%84%E6%B5%8B%E6%96%B0%E5%86%A0%E7%97%85%E6%AF%92%E8%82%BA%E7%82%8E%E5%8F%91%E7%97%85%E6%95%B0%E6%8D%AE/