点对点数据交换（P2P）：实现基于服务器转发的任意多点间的数据共享与交换。能够实现文件传输，成员管理，截屏，私聊等功能。-Peer-to-peer data exchange (P2P): based on the server forwards any data sharing and exchange. Able to achieve the file transfer, a member of management, screen shots, private chat and other