micro:bit Design

Press the A button and the bird will fly up. Press the B button and the bird will drop down. Do not use the other buttons. Use these two buttons to control the height of the bird to avoid obstacles.按A键，小鸟就会飞起来。按B键，小鸟就会掉下来。不要使用其他按钮。使用这两个按钮来控制小鸟的高度以避开障碍物。