docs: def block_here(duration=0):
      """
      如果 duration 为0, 则一直阻塞程序运行
      :param duration:
      :type duration:
      :return:
      :rtype:
      """
      try:
          while not duration:
              time.sleep(0.001)
  
          while duration:
              time.sleep(0.001)
              duration -= 1
      except KeyboardInterrupt as err:
          raise SystemExit(1)