该源码的主要功能：用C来实现的服务器与客户端通信的全部步骤，标明清楚，风格规范，一看即懂，是初学网络编程的好开始。-The main function of the source: Using C to implement server and client to communicate all the steps, marked clearly, style specifications, a look that is understood, is a good start for begin