能够处理各种UI事件: IPointerEnterHandler:当指针进入 void OnPointerEnter(PointerEventData eventData); IPointerExitHandler : 当指针出去 void OnPointerExit(PointerEventData eventData) IPointerDownHandler :当指针在可视化区域按下 void OnPointerDown(PointerEventData eventData); IPoint…