利用QT写的可以实现对不同地点摄像头进行监控，可以在1路、4路、8路、16路，全屏之间进行切换，摄像头是每个分配一个ip。-QT can use to write to different locations to monitor the camera, you can switch between the 1-way, 4-way, 8-way, 16-way, full-screen, each camera is assigned a ip.