引用WeUI，复制官方文档中代码，在开发工具中显示正常，但真机预览的时候样式不生效

  "useExtendedLib": {
    "weui": true
  },
  "componentFramework": "glass-easel",
  "sitemapLocation": "sitemap.json",
  "lazyCodeLoading": "requiredComponents",
  "usingComponents": {
    "navigation-bar": "/components/navigation-bar/navigation-bar",
    "mp-dialog": "weui-miniprogram/dialog/dialog",
    "mp-icon": "weui-miniprogram/icon/icon"
  }

<scroll-view class="scrollarea" scroll-y type="list">
  <view class="container">
    这里是首页
    <mp-icon type="field" icon="add" color="black" size="{{25}}"></mp-icon>
    <mp-icon icon="add" color="black" size="{{25}}"></mp-icon>
    <mp-dialog title="test" show="{{true}}" bindbuttontap="tapDialogButton" buttons="{{buttons}}">
      <view>
        test content
      </view>
    </mp-dialog>
  </view>


</scroll-view>