diff --git a/pages/index/index/index.js b/pages/index/index/index.js
index eec3d37..59f054f 100644
--- a/pages/index/index/index.js
+++ b/pages/index/index/index.js
@@ -326,6 +326,10 @@ Page({
                     th.setData({
                         preGoods: arr
                     });
+                }else{
+                    th.setData({
+                        preGoods: null
+                    });
                 }
             }
         })