基于这个API层写的。之所以写这个小程序主要是因为通过lsusb命令只能看到类似venderID,productID之类的参数，而看不到其他的涉及摄像头本身的一些参数-Based on this API layer written. The reason to write this little program is mainly due to an order can only see through lsusb similar venderID, productID such paramet