这是一个用完成端口(IO Completion port)写的echo server，运行iocp.exe后，在控制台使用 telnet 127.0.0.1 7 就可以连接上，然后你输入什么屏幕就显示什么。-This a complete port with (IO Completion port) was the echo server, running iocp.exe after the console using telnet 127.0.0.1 7 can be connected to, then you input on what the screen shows what.