Unity3D相机切换效果

public Camera cam_0;    public Camera cam_1;    void Strat()    {             }    void Update()    {        if (Input.GetKeyDown(KeyCode.Alpha1))        {            cam_1.enabled = true;            cam_0.enabled = false;        }        if (Input.GetKeyDown(KeyCode.Alpha2))        {            cam_1.enabled = false;            cam_0.enabled = true;        }    }    void OnGUI()    {        GUI.Box(new  Rect(10, 10, 100, 90), "Camera Switch");        if (GUI.Button(new Rect(20, 40, 80, 20), "Camera 1"))        {            cam_1.enabled = true;        }        else        {            cam_0.enabled = false;        }        if (GUI.Button(new Rect(20,70,80,20),"Camera 2"))        {            cam_1.enabled = false;        }else        {            cam_0.enabled = true;        }    }