python-opencv 利用摄像头保存截图到本地

import threadingimport cv2global timerimport sysimport timedef shot_img():    global num    success, frame = cameraCapture.read()    path = "D:/Images/"    cv2.imwrite( path +str(num) + '.png', frame)    print(num)    num += 1    if num==5: cameraCapture.release() cv2.destroyAllWindows() sys.exit()    timer = threading.Timer(1, shot_img)    timer.start()if __name__ == '__main__':    num=0    cameraCapture = cv2.VideoCapture(0)    timer = threading.Timer(1,shot_img)    timer.start()

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