设计一个电动机控制器，两台电动机的控制要求为：当按键k1按下后，第1台电动机运转5s后停止，切换到第2台电动机运转，10s后第2台电动机自动停止运转。-Design a motor controller, two motor control requirements: When the button is pressed k1, 1 5s electric motor stops running, switch to 2 motors running, 10s after the first 2