TweenAlpha的使用

transform.GetComponent<TweenAlpha>().from = 0f;
transform.GetComponent<TweenAlpha>().to = 1f;
transform.GetComponent<TweenAlpha>().enabled = true;
transform.GetComponent<TweenAlpha>().onFinished.Clear();
transform.GetComponent<TweenAlpha>().onFinished.Add(new EventDelegate(OnFinishCallBack));
transform.GetComponent<TweenAlpha>().ResetToBeginning();    

// 动画完成调用
private void OnFinishCallBack(){

}