说明：  一个简单的交通灯labview实现，7秒绿灯，3秒黄灯，10秒红灯，初学者可以看看，对顺序执行，延时执行的理解有一定帮助。
(A simple traffic light labview achieved, 7 seconds green, yellow 3 seconds, 10 seconds red light, beginners can see, on the order of execution, delay the implementation of the understanding of some help.)