wxappb2b/GuangZuan/miniprogram/mHome/pages/purchase/list/index.wxml

<!--mHome/pages/purchase/list/index.wxml-->
<view class="container">
  <!-- 导航栏 -->
  <van-nav-bar custom-style="background-color: #407DB8">
    <van-icon slot="left" name="arrow-left" size="25px" color="#fff" bind:click="backToParent"/>
    <text slot="title" style="color: #fff;">集采交易</text>
  </van-nav-bar>

  <!-- tabs -->
  <van-tabs swipeable bind:change="onTabChange" color="#2270D9" line-width="20px" title-inactive-color="#333" title-active-color="#407DB8">
    <van-tab wx:for="{{ tabs }}" wx:for-item="itm" wx:key="id" id="{{ itm.id }}" title="{{ itm.name }}"/>
  </van-tabs> 
</view>

<!-- empty -->
<van-empty wx:if="{{ isEmpty }}" class="custom-image" description="无数据"/>