meeting-management-applet-zfb/vant-aliapp/dist/index-bar/index.axml

<view class='index-bar-index {{className}}' style='{{style}}' ref='saveChildRef0'>
  <view class='van-index-bar'>
    <slot>
    </slot>
    <view a:if='{{ showSidebar }}' class='van-index-bar__sidebar' catchTap='antmoveAction' data-antmove-tap='onClick' catchTouchMove='antmoveAction' data-antmove-touchmove='onTouchMove' catchTouchEnd='antmoveAction' data-antmove-touchend='onTouchStop' catchTouchCancel='antmoveAction' data-antmove-touchcancel='onTouchStop'>
      <view a:for='{{ indexList }}' a:key='{{index}}' class='van-index-bar__index' style="z-index: {{ zIndex + 1 }}; color: {{ activeAnchorIndex === index ? highlightColor : '' }}" data-index='{{ index }}' ref-numbers='{{ indexList }}'>
        {{ item }}
      </view>
    </view>
  </view>
</view>