利用摄像头，根据周围环境自动调节屏幕亮度。也可以改为手动模式~ 自己写的，内附全部源代码~ 亮度调整在人眼可接受范围内~-The camera automatically adjusts screen brightness according to the surrounding environment. Manual mode can also be changed to Wrote it myself, included all the source code to The