import cv2
if __name__ == "__main__":
video_capture = cv2.VideoCapture(0)
while True:
ret, draw = video_capture.read()
cv2.imshow('live camera', draw)
if cv2.waitKey(20) & 0xFF == ord('q'):
break
video_capture.release()
cv2.destroyAllWindows()
上面是按q退出的实时摄像显示,效果: