该程序可以自动识别摄像头，默认打开像素最好的摄像头，假如检测不到摄像头会有提示，可以调整图像的对比度、饱和度亮度等参数，实现图片抓取和自动保存！-The program can automatically recognize the camera, the default open-pixel camera with the best, if not detect the camera will prompt, you can adjust the image s contrast, satur