unity中实现2D图片的左右移动和方向偏转_在unity中canvas中图片左移

    private void Update()
    {
        Vector3 acc = Vector3.zero;
        Vector3 diff;
        if(Input .GetKey (KeyCode .LeftArrow))
        {
            transform.localScale = new Vector3(-1, 1, 1);
            acc.x  = -0.1f;
        }
        if(Input .GetKey (KeyCode .RightArrow))
        {
            transform.localScale = new Vector3(1, 1, 1);
            acc.x = 0.1f;
        }
        diff = Vector3.MoveTowards(transform.localPosition, transform.localPosition + acc, 0.5f * Time.time);
        transform.localPosition = diff;
 
    }