基于socket的即时通讯软件的设计，本设计通过研究讨论，设计基于socket编程的网络聊天系统，服务器端采用多线程并发服务方式，多客户端能同时连接服务器，并且客户端之间能进行通信。程序通过了验证与测试，证明了系统的可用性、易用性、完善性。-Socket-based design of instant messaging software,This design study and discuss the design of network-based chat system socket programming, multi-threaded concurrent server-side service mode, multiple clients can simultaneously connect to the server and the client can communicate between. Passed the verification and test procedures to prove the system s availability, ease of use, perfection.