diff --git a/pages/cart/cart2/cart2.js b/pages/cart/cart2/cart2.js
index 59ed7ac..4053663 100644
--- a/pages/cart/cart2/cart2.js
+++ b/pages/cart/cart2/cart2.js
@@ -102,7 +102,7 @@ Page({
 
   //----------子页返回父页触发----------
   onShow: function() {
-
+      var th=this;
       //先获取是否有关闭使用优惠券
       getApp().getConfig2(function (ee) {
           var json_d = JSON.parse(ee.switch_list);
@@ -111,7 +111,7 @@ Page({
           th.get_wuliu(th.get_info(th.show_page));
       })
 
-    var th=this;
+
     console.log(th.data.isclose);
     if (th.data.isclose==0){
       /*---