diff --git a/packageE/pages/cart/cart2/cart2.js b/packageE/pages/cart/cart2/cart2.js
index c420620..9cc5d41 100644
--- a/packageE/pages/cart/cart2/cart2.js
+++ b/packageE/pages/cart/cart2/cart2.js
@@ -5983,15 +5983,18 @@ Page({
   setexptype_w2: function (e) {
 
 
-    for (let i = 0; i <this.data.cartlist ; i++) {
+
+    for (let i = 0; i <this.data.cartlist.length ; i++) {
+
+
         var collocationList=this.data.cartlist[i].collocationList;
         if(collocationList){
 
-            var txt2 = 'cartlist[' + cart_index + '].collocationList';
+            var txt2 = 'cartlist[' + i + '].collocationList';
             for (let jy = 0; jy <collocationList.length ; jy++) {
                collocationList[jy].selected=0;
             }
-            th.setData({[txt2]:collocationList})
+            this.setData({[txt2]:collocationList})
 
 
             var bn_coll= this.selectComponent("#col"+i);
@@ -6003,9 +6006,10 @@ Page({
                   if(goods[j].is_collocation) continue;
                   g_arr.push(goods[j]);
             }
-            var txt = 'cartlist[' + cart_index + '].goods';
 
-            th.setData({ [txt]: g_arr});
+            var txt = 'cartlist[' + i + '].goods';
+
+            this.setData({ [txt]: g_arr});
         }
     }