mp_seller/custom-tab-bar/index.wxml

<van-tabbar active="{{ active }}"
   bind:change="onChange">
  <van-tabbar-item wx:for="{{ list }}" wx:key="index" icon="{{ item.icon }}" info="{{item.info}}">{{
    item.text
  }}</van-tabbar-item>
</van-tabbar>

 <!-- <wux-tabbar defaultCurrent="{{active}}" bindchange="onChange">
  <wux-tabbar-item key="{{index}}" data-url="{{item.url}}" title="{{item.text}}" wx:for="{{list}}" wx:key="{{index}}">
                <wux-icon wux-class="icon" type="{{item.icon}}" size="22" slot="icon-on" />
                <wux-icon wux-class="icon" type="{{item.icon}}" size="22" slot="icon-off" />
            </wux-tabbar-item>
 </wux-tabbar> -->