说明：  网络通信编程，socket编程，socket客户端程序，可运行。代码简单完整，注释清晰，linux下编译通过，可运行。适合socket编程入门参考。 与服务端配合使用
(Network communication programming, socket programming, socket client program, you can run. Code is simple and complete, clear notes, linux compiled by, you can run. Introduction to socket programming is suitable for reference. Used in conjunction with the server-side)