2021-09-23

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主要内容：web socket, C language

socket的入门介绍+socket，tcp，http三者之间的区别和原理: https://zhuanlan.zhihu.com/p/61710107

最简单的gcc编译：

$ gcc hello.c -o hello

$ ./hello

简单的、能直接编译运行的示范程序

http://c.biancheng.net/cpp/html/3030.html

https://www.cnblogs.com/liushui-sky/p/5609535.html 解释很详细，但代码比较零散

https://stackoverflow.com/questions/14373715/why-does-printf-not-work-in-socket-programming 意外发现了一个代码整洁的示范

https://www.cnblogs.com/leezheng/p/8030011.html 有关socketUDP的示范代码

🔗 [GitHub - rqycpp/socket: 《Linux/UNIX网络编程》习题答案&重点归纳] https://github.com/rqycpp/socket

socket相关的代码里，printf()结果出不来的解决方法：https://stackoverflow.com/questions/14373715/why-does-printf-not-work-in-socket-programming