网络实时通讯软件的设计与实现,本系统将实现局/广域网下Peer-to-Peer即时通讯功能，C/S模式，主要架构分为三个主模块：Client端，Server端-Network real-time communication software design and implementation, the system will achieve the Board/WAN under the Peer-to-Peer instant messaging features, C/S mode, the main architecture is divided into three main modules: Client client, Server-side