可以实现正常的网络聊天功能，仿QQ设计，可以注册、登录、添加好友、聊天等功能(The system can achieve the normal network chat function.You can use it to register, login, add friends, chat with others and so on.)

简单的邮件客户端程序可以收发邮件，直接打开就可以应用(First you need to have a send mail, the general mailbox has SMTP, POP3 services, such as QQ mailbox, mailbox login QQ open SMTP service, open the server will prompt you to set up a separate password, this password is the pa

QQ微信微博第三方登录 个人写的， 不完全， 大概意思还是能表明的(QQ WeChat micro-blog third party login)