这是一个代理服务器实例，它支持二级代理，其中还有一个虚拟的Web服务器，其根目录是“ProxyServer”， 在运行该程序前首先需要把该目录拷贝到C盘的根目录下，当然也可以在源代码中改变指定的位置。-This is an example of a proxy server, which supports two agents, which have a virtual Web server, the root directory is "ProxyServer" run

用Visual C++开发的电子邮件接收系统，用于学习用VC开发邮件软件。-Using Visual C++ Developed to receive e-mail system for studying the development of e-mail software with VC.