随着计算机网络化的深入，计算机网络编程在程序设计的过程中变得日益重要。由于C++语言对底层操作的优越性，许多文章都曾经介绍过用VC++进行Socket编程的方法。但由于都是直接利用动态连接库wsock32.dll进行操作，实现比较繁琐。其实，VC++的MFC类库中提供了CAsyncSocket这样一个套接字类，用他来实现Socket编程，是非常方便的。

-computer network with the in-depth, computer network programming procedures in the design process is becoming increasingly important. As the C language to the underlying operational superiority, many articles have all introduced with VC for Socket programming method. But are the direct use of Dynamic Link Library wsock32.dll operate to achieve relatively more complicated. In fact, the VC MFC provided CAsyncSocket such a socket type used him to Socket Programming, it is very convenient.