启动程序方法：

1.先运行服务器start_server，输入-help获得帮助信息，按照提示输入，当出现“创建服务器并运行”字样，说明服务器启动成功

2.启动客户端start_client,按照提示输入即可-Start the program: 1. First run the server start_server, input-help for help information, follow the prompts to enter, When the " create server and run"　words, indicating server has started successfully 2. Start client start_client, follow the prompts to input can be