private void Update()
{
Vector2 position;
RectTransformUtility.ScreenPointToLocalPointInRectangle(GameObject.Find("Canvas").transform as RectTransform, Input.mousePosition, null, out position);
if (isDrag)
{
dragItemUI.Show();
dragItemUI.SetLocalPostion(position);
}
else if (isShow)
{
tooltipUI.Show();
tooltipUI.SetLocalPostion(position);
}
}