数值变化跳动效果

 public Text txt;

    private int num;

    private float _timers=10;
    private int _target;

    public void Set(float index)
    {
        txt.text = index.ToString();
    }

    public void Go(int target)
    {
        _target = target;
        num = int.Parse(txt.text);
        StopCoroutine("IReduce");
        StartCoroutine("IReduce");
    }

    IEnumerator IReduce()
    {
        float offset = (num - _target) / _timers;
        if (Mathf.Abs(offset) < 1)
        {
            txt.text = _target.ToString();
            yield break;
        }

        for (int i = 0; i < _timers; i++)
        {
            num =(int)(num-offset);
            txt.text = num.ToString();
            if (i == _timers-1)
            {
                txt.text = _target.ToString();
            }
            yield return new WaitForSeconds(0.1f);
        }
    }
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