fix wx:key

static/nativeComponents/PhotoGallery/index.wxml

@@ -4,7 +4,7 @@
     {{datas.componentData.titles}}
   </view>
   <view wx:if="{{datas.componentData.style==='list'}}">
-    <view class="imgcontent" bindtap="itemClick" data-item="{{item}}" wx:for="{{datas.componentData.imgList}}"  wx:key="{{index}}" style="margin-bottom:{{datas.componentData.imgPadding * 2}}rpx">
+    <view class="imgcontent" bindtap="itemClick" data-item="{{item}}" wx:for="{{datas.componentData.imgList}}"  wx:key="index" style="margin-bottom:{{datas.componentData.imgPadding * 2}}rpx">
       <image src="{{item.imageUrl}}" lazy-load mode="widthFix"></image>
     </view>
   </view>
@@ -16,7 +16,7 @@
       <i class="iconfont-common common-iconyoujiantou"></i>
     </view>
     <view style="display:{{datas.componentData.style==='tiled' ? 'flex' : ''}}" class="ul">
-      <view bindtap="itemClick" data-item="{{item}}" wx:for="{{datas.componentData.imgList}}" wx:key="{{index}}" style="margin-right:{{index===(datas.componentData.imgList.length-1)? '' : datas.componentData.imgPadding * 2 + 'rpx'}};width:{{datas.componentData.style==='across' ? datas.componentData.acrossPer+'%' : ''}}" class="li">
+      <view bindtap="itemClick" data-item="{{item}}" wx:for="{{datas.componentData.imgList}}" wx:key="index" style="margin-right:{{index===(datas.componentData.imgList.length-1)? '' : datas.componentData.imgPadding * 2 + 'rpx'}};width:{{datas.componentData.style==='across' ? datas.componentData.acrossPer+'%' : ''}}" class="li">
         <image src="{{item.imageUrl}}" style="width:{{datas.componentData.style==='tiled' ? imgArr[index].width : ''}}px;height:{{ datas.componentData.style==='tiled' ? imgArr[index].height : ''}}px" lazy-load bindload="bindload" data-index="{{index}}" mode="{{datas.componentData.style==='across' ? 'widthFix' : ''}}"></image>
       </view>
     </view>