private void OnDestroy()
{
BagDataManager.RemoveEventHandler <UIItem>(BagDataEvent.CLICK_ITEM, ClickItem);
}
private void OnDestroy()
{
BagDataManager.RemoveEventHandler <UIBagClickMenu>(BagDataEvent.SELL_NUM, SellItem);
button.onClick.RemoveListener(OnClick);
sellNum.onValueChanged.RemoveListener(OnSellNumChanged);
}