http/https库

https://github.com/noxue/chttp/

 

C语言实现HTTP

https://zhuanlan.zhihu.com/p/270528096

 

　　https://blog.csdn.net/u010299133/article/details/93070635

　　https://www.cnblogs.com/jiujuan/p/9399165.html

　　https://www.cnblogs.com/diligenceday/p/6255788.html