diff --git a/pages/articleList/index.wxml b/pages/articleList/index.wxml
index beee3d4..907e383 100644
--- a/pages/articleList/index.wxml
+++ b/pages/articleList/index.wxml
@@ -12,7 +12,7 @@
         <image src="https://lanhu-oss-2537-2.lanhuapp.com/SketchPng33ce9f3cededd2f9cdbc22dc9b0d16282ea0042c9dbcf67e8f364971c4b93af2" class="thumbnail_1"></image>
       </view>
     </view>
-    <view class="box_5" wx:for="{{articles}}">
+    <view class="box_5" wx:for="{{articles}}" wx:key="id" bind:tap="preview" data-index="{{index}}">
       <view lines="1" class="text_5">{{item.title}}</view>
       <view class="box_6">
         <text lines="1" decode="true" class="text_6">{{item.contentText}}</text>