添加data-index

weapp/package/polling/inspectionRecordDetail/inspectionRecordDetail.wxml

@@ -51,7 +51,7 @@
           <view class='title'>巡检图片：</view>
           <view class="img-v weui-uploader__bd" style="overflow:hidden;">
             <view class='pic' wx:for="{{value.imgs}}" wx:for-item="item" wx:key="*this">
-              <image class='weui-uploader__img showImg' src="{{imgUrl + item}}" data-img="{{imgUrl + item}}" data-key="{{key}}" mode="aspectFill" bindtap="previewImg"></image>
+              <image class='weui-uploader__img showImg' src="{{imgUrl + item}}" data-img="{{imgUrl + item}}" data-index="{{index}}" data-key="{{key}}"  mode="aspectFill" bindtap="previewImg"></image>
             </view>
           </view>
         </t-collapse-panel>