用C#使用Socket实现的带用户登陆及聊天功能的代码，VS2005，SQL SERVER2005，比较好。-Using C# use Socket implementation with user login and the chat function of the code, VS2005, SQL SERVER2005, better.

SocketHelper，数据库的help类-SocketHelper, help class of

socket通信类，有完善的服务端和客户端模式，只要选择一种模式实例化，功能强大易用，可以设置连接数等高级功能。-Socket communication class, has a perfect service and client mode, just choose a pattern instantiation, powerful and easy to use, you can set the number of connect