用简单触发器添加一个“放在道具栏便有加成”的物品

例如玩家有金条便会增加2点统御

(try_begin),
    (player_has_item,"itm_gold"),
    (neg|item_slot_eq,"itm_gold",960,1),#用该物品的960号slot值1表示玩家获得过此物品
    (try_begin),
        (player_has_item,"itm_gold"),
        (troop_raise_skill,"trp_player",skl_leadership,2),
        (item_set_slot,"itm_gold",960,1),
    (try_end),
(else_try),
    (item_slot_eq,"itm_gold",960,1),
    (troop_raise_skill,"trp_player",skl_leadership,-2),
    (item_set_slot,"itm_gold",960,0),#当加成失效时，将该slot值赋0，表示玩家从未获得过此物品
(try_end),