0.史上最容易理解的:TCP三次握手,四次挥手

https://cloud.tencent.com/developer/news/257281

A 理解TCP/IP三次握手与四次挥手的正确姿势
https://www.cnblogs.com/lms0755/p/9053119.html

B 四次挥手过程理解
https://blog.csdn.net/qq_38950316/article/details/81087809

C TCP三次握手四次挥手详解
http://www.cnblogs.com/zmlctt/p/3690998.html

05-04 05:07