untiy 鼠標拖拽事件

public class RotateEvent : MonoBehaviour , IPointerClickHandler, IBeginDragHandler, IDragHandler, IEndDragHandler
{



	public void OnBeginDrag(PointerEventData eventData)
	{
		Debug.Log(eventData);
		Debug.Log("拖拽開始");
	}

	// during dragging
	public void OnDrag(PointerEventData eventData)
	{
		Debug.Log(eventData);
		Debug.Log("拖拽中");
	}

	// end dragging
	public void OnEndDrag(PointerEventData eventData)
	{
		Debug.Log(eventData);
		Debug.Log("拖拽擡起");
	}




}