一个用java编写的小的服务器程序,可以用telnet命令访问!有一定的参考价值.-prepared with a small server program, you can use telnet commands to access! There will be some reference value.

转载：用C语言实现telnet功能。对于学习网络TCP/IP协议的初学者有不错的参考价值(Reprint: use C language to realize telnet function. For beginners to learn network TCP/IP protocol, there are good reference value)