https://github.com/hfeeki/libwebsockets
https://blog.csdn.net/cjqqschoolqq/article/details/88728092
https://blog.csdn.net/u013780605/article/details/79489197
https://blog.csdn.net/qq_39101111/article/details/79009110
https://blog.csdn.net/yuanwei1314/article/details/76228495
https://blog.csdn.net/u013780605/article/details/79489183
https://blog.csdn.net/hellokandy/article/details/70877870
原文：https://www.cnblogs.com/retry/p/11668307.html