diff --git a/pages/cart/cart2/cart2.js b/pages/cart/cart2/cart2.js
index 742e1c1..a204b54 100644
--- a/pages/cart/cart2/cart2.js
+++ b/pages/cart/cart2/cart2.js
@@ -2147,7 +2147,7 @@ Page({
     if(quan_item.UseObjectType=="20"){
         //---只有多件购买的时候才要计算，//购物车购买和搭配勾的时候---
         var gg=getApp().get_b_now();
-        if(this.data.is_b_now==0 || this.data.gg.prom_type==5){
+        if(this.data.is_b_now==0 || gg.prom_type==5){
             var arr=this.data.order_prom_list_cart;
             var t_pk_item=null;
             for(var ii in arr){