diff --git a/pages/cart/cart2/cart2.js b/pages/cart/cart2/cart2.js
index 585a1fc..8166d3f 100644
--- a/pages/cart/cart2/cart2.js
+++ b/pages/cart/cart2/cart2.js
@@ -625,7 +625,10 @@ Page({
           }
 
           th.data.cartlist[i].user_money = parseFloat(th.data.cartlist[i].user_money).toFixed(2);
-          th.data.cartlist[i].coupon_price=coupon_price.toFixed(2);
+          
+          if (coupon_price>0) th.data.cartlist[i].coupon_price=coupon_price.toFixed(2);
+          else th.data.cartlist[i].coupon_price = coupon_price
+           
           th.data.cartlist[i].goods_price = o_price.toFixed(2);
           th.data.cartlist[i].order_amount= th.data.cartlist[i].order_amount- th.data.cartlist[i].user_money;         //会员使用余额