本程序采用socket技术，分为两个部分：Server和Client，与此类大部分程序不同的是，本程序是两个或多个Client通过Server通信。Client可以注册账户、登录、添加好友，创建以及加入群等。-This procedure uses socket technology, is divided into two parts: Server and Client, with the majority of such procedures are different is that t