//吃东西，click button
public void EatItem()
{
if (!item.canUse)
{
return;
}
else if (item.bMushroom != -1)
{
int HPChange = item.HPChange;
playerData.ChangeHP(Random.Range(-HPChange, HPChange + 1));
BagUI bag = transform.parent.parent.parent.GetComponent <BagUI>();
//吃掉后还可以选择
bag.bFirstSelect = true;
bag.ShowData(); //更新血量
//删除背包库里的这个东西
playerBag.itemList.Remove(item);
//删除介绍文字
transform.parent.parent.parent.Find("ItemInfoBack").GetChild(0).gameObject.GetComponent <Text>().text = "";
Destroy(gameObject);//内存还没释放
}
}