vc++下完成端口的用法，windows下网络编程的朋友可以看一下。

完成端口IOCP，接受大连接的服务器，可以将资源消降到最小，高性能。-Completion port IOCP, to connect the server to accept large, you can minimize the resource consumption, high-performance.

Complete Demo, that show how to use Compeltion Port communications