协议通信测试，间隔1秒交替发随机数，帧长16-Protocol communication test interval of one second by alternating random number, frame length 16

这个socket服务器代码可以为你建立指定的监听端口、客户端请求响应机制等一些服务器所具备的基本框架 -the socket server code can you establish designated monitor port, the client request response mechanism and some other servers with a basic framework

socket编程，多线程通讯，通过main-socket