diff --git a/pages/cart/cart2/cart2.js b/pages/cart/cart2/cart2.js
index 9341cb0..09194c6 100644
--- a/pages/cart/cart2/cart2.js
+++ b/pages/cart/cart2/cart2.js
@@ -610,11 +610,11 @@ Page({
               coupon_price=o_price;
           }
 
-          th.data.cartlist[i].total_amount+=th.data.cartlist[i].shipping_price;  //总金额
-          th.data.cartlist[i].order_amount+=th.data.cartlist[i].shipping_price;  //总金额
+          th.data.cartlist[i].total_amount= parseFloat(th.data.cartlist[i].total_amount)+parseFloat(th.data.cartlist[i].shipping_price);  //总金额
+          th.data.cartlist[i].order_amount=parseFloat(th.data.cartlist[i].order_amount)+parseFloat(th.data.cartlist[i].shipping_price);  //总金额
 
-          th.data.cartlist[i].total_amount= parseFloat(th.data.cartlist[i].total_amount).toFixed(2);
-          th.data.cartlist[i].order_amount=parseFloat(th.data.cartlist[i].order_amount).toFixed(2);
+          th.data.cartlist[i].total_amount= th.data.cartlist[i].total_amount.toFixed(2);
+          th.data.cartlist[i].order_amount=th.data.cartlist[i].order_amount.toFixed(2);
 
           //--------------如果使用余额---------------------
           if (th.data.js_use_money == 1) {