1、这是摄像头正常工作状态，不用关闭。 2、摄像机把光学图像信号转变为电信号，以便开发者_如何学Go于存储或者传输。当拍摄一个物体时，此物体上反射的光被摄像机镜头收集，使其聚焦在摄像器件的受光面（例如[详细]
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