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flashlight11
- 80C51的红绿灯交替闪亮,模拟人行横道红绿灯控制: a.绿灯亮3s b.绿灯闪3下:1Hz c.绿灯闪5下:5Hz d.红灯亮7s e.反复a-d -80C51 traffic lights flashing alternately, simulation crosswalk traffic light control: (a) the green light 3s b green light flash