模拟红绿灯，VB6.0模拟交通信息灯定时切换功能，到时间自动变灯。初始设定为60秒，时间到自动变为黄灯，随后变为绿灯，用VB写交通灯控制的时候，这个逻辑可以参考。-Simulation of traffic lights, VB6.0 simulation of traffic information lamp switch function, the automatic variable light time. The initial set to 60 seconds, the time to automatically become yellow, and then into the green traffic light control, when written in VB, this logic can refer to.