紅綠燈

using UnityEngine;

public class ExampleClass : MonoBehaviour 

{

    void Update() 

    {

        // Rotate the object around its local X axis at 1 degree per second

        transform.Rotate(10*Vector3.right * Time.deltaTime);

        // ...also rotate around the World's Y axis

        transform.Rotate(Vector3.up * Time.deltaTime, Space.World);

    }

       }