仿QQ聊天工具设计文档实现了1.登录功能

2.客户可以通过服务器转发，实现一对一和多对多聊天

实现呼叫功能

客户端程序应该可以实时显示目前其它用户应该具有易用、美观的图形界面

-QQ chat tools like design documents to achieve the 1. Login 2. Customers can forward through the server to achieve the realization of one-on-one and many-to-many chat client program calls function should be able to present real-time display of other users should have easy-to-use, aesthetically pleasing graphics interface