//Vector3 pos; public float speed = 0.25f; // Use this for initialization void Start () { // pos = transform.position; } // Update is called once per frame void Update () { float move = Time.time * speed; GetComponent<MeshRenderer>().material.mainTextureOffset = new Vector2(0,move);//材质移动 //print(Time.time); //float t= Mathf.Repeat(Time.time*speed,30); //transform.position = pos + t * Vector3.back; }