QT tcp服务器，可实现服务器和客户端的数据j交互(QT TCP server, which implements data J interaction between server and client)

1.采用TCP通信与服务器连接； 2.通过按键控制开关灯、开关门、报警等； 3.实时显示测得的温湿度信息； 4.显示摄像头拍摄的画面；(1. Use TCP communication to connect with the server; 2. Control the switch light, door opening and closing, alarm, etc. through the key; 3. Display the measured temperature and humid