<view class="main">
  <view class="center">
    <view class="icon"><icon type="waiting" size="90"></icon></view>
    <view class="text"><text>文件下载中，请稍候... {{progress}}%</text></view>
    <progress percent="{{progress}}" stroke-width="20" border-radius="10"/>
    <view>
    {{error}}
    </view>
  </view>
</view>

