opencv摄像头显示屏幕变成一条缝

KERNEL =="video*",ATTR{index}=="0",KERNELS=="1-1.3",MODE:="0777",SYMLINK+="my_video1"
KERNEL =="video*",ATTR{index}=="0",KERNELS=="5-1",MODE:="0777",SYMLINK+="my_video2"

将SYMLINK改成video1，video2
然后插拔一下摄像头usb
输入

ls -l /dev |grep video

然后调用摄像头2

self.video_capture = cv2.VideoCapture(2)