模拟的十字路口红绿灯和两条人行横道进行红绿灯交替变换-Simulation intersection traffic lights and two pedestrian crossing For traffic lights alternates alternately

然后是调用，功能性子VI一般采用事件结构来调用，例如按键调用，方法是直接将子VI放到该事件中即可，如果希望调用的时候弹出子VI 的面板，在程序框图中设置子VI的属性为调用时打开前面板就可以了-Then call the function patience VI generally used to call the event structure, such as the call button, the method is to directly put the event in the sub