weixin/miniprogram_npm/lin-ui/index-anchor/index.wxml

<view class="anchor-wrapper" style="{{anchorWrapperStyle}}">
  <view class="anchor" style="{{anchorStyle}}">
    <view wx:if="{{anchorSlot.height!==0}}" class="anchor-slot">
      <slot></slot>
    </view>

    <view wx:if="{{anchorSlot.height===0}}" class="anchor-default l-anchor-class">
      {{anchorText}}
    </view>
  </view>
</view>