实现像QQ聊天的那种功能，并且自己可以添加相应的功能。可扩展性好！-Achieve the kind of chat function as QQ, and they can add the corresponding functions. Good scalability!

利用Actionscr ipt 3.0实现实现的聊天室。典型应用系统（Actionscr ipt 3.0实现）-Use Actionscr ipt 3.0 to achieve the realization of the chat room. Typical applications (Actionscr ipt 3.0 implementation)