简易聊天室,基于ASP.NET和C#语言，实现了用户个数统计、异步回传技术，课堂小作业-Simple chat rooms, based on ASP.NET and C# language, to achieve a number of user statistics, asynchronous postback technology, classroom small jobs

聊天室系统，实现留言和回复功能，简易的聊天系统(Chat room system, to achieve message and reply function, simple chat system)