在Windows系统里，使用完成端口是高性能的方法之一，比如把完成端口使用到线程池和网络服务器里。 此为一个挺好的用C++的完成端口例子-In the Windows system, use the completion port is one of the ways high-performance, such as the completion of the port to the thread pool and use the web server in. This is a very