fupin/components/form/form-upload/form-upload.wxml

<view-flex styleCss="{{styleCss}}" justify="space-between" align="center">
  <view class="form-label">
    {{uploadTxt}}
  </view>
  <view-flex class="form-value" justify="flex-end">
    <wux-upload slot='footer' listType="picture-card" showUploadList="{{ false }}" url="{{api}}/grants/wechat/consumerinfo/upload"  header="{{header}}" name="file" bind:success="uploadSuccess" bind:fail="uploadFail" bind:preview="onPreview"  >
      <image src="{{ imageUrl }}" wx:if="{{ imageUrl }}" mode="aspectFit" style="width:300rpx; height: 154rpx;" />
      <text wx:else>{{uploadTxt}}</text>
    </wux-upload>
  </view-flex>
</view-flex>