给分吧
http://www.codeproject.com/script/articles/download.aspx?file=/KB/IP/ChatAsynchTCPSockets/tcpchat.zip&rp=http://www.codeproject.com/Articles/16916/A-Chat-Application-Using-Asynchronous-TCP-Sockets
http://www.codeproject.com/script/articles/download.aspx?file=/KB/IP/ChatAsynchTCPSockets/tcpchat.zip&rp=http://www.codeproject.com/Articles/16916/A-Chat-Application-Using-Asynchronous-TCP-Sockets
这篇文章呢,你看看是否有帮助?
需要进行超时机制的判断的