classroom-music-activation/miniprogram/miniprogram_npm/@vant/weapp/cascader/index.wxml

<wxs src="./index.wxs" module="utils" />

<view wx:if="{{ showHeader }}" class="van-cascader__header">
  <slot name="title" wx:if="{{ useTitleSlot }}"></slot>
  <text class="van-cascader__title" wx:else>{{ title }}</text>
  <van-icon
    wx:if="{{ closeable }}"
    name="{{ closeIcon }}"
    class="van-cascader__close-icon"
    bind:tap="onClose"
  />
</view>

<van-tabs
  active="{{ activeTab }}"
  custom-class="van-cascader__tabs"
  wrap-class="van-cascader__tabs-wrap"
  tab-class="van-cascader__tab"
  color="{{ activeColor }}"
  border="{{ false }}"
  swipeable="{{ swipeable }}"
  ellipsis="{{ ellipsis }}"
  bind:click="onClickTab"
>
  <van-tab
    wx:for="{{ tabs }}"
    wx:for-item="tab"
    wx:for-index="tabIndex"
    wx:key="tabIndex"
    title="{{ tab.selected ? tab.selected[textKey] : placeholder }}"
    style="width: 100%;"
    title-style="{{ !tab.selected ? 'color: #969799;font-weight:normal;' : '' }}"
  >
    <!-- 暂不支持 -->
    <!-- <slot name="options-top"></slot> -->

    <view class="van-cascader__options">
      <view
        wx:for="{{ tab.options }}"
        wx:for-item="option"
        wx:key="index"
        class="{{ option.className }} {{ utils.optionClass(tab, valueKey, option) }}"
        style="{{ utils.optionStyle({ tab, valueKey, option, activeColor }) }}"
        data-option="{{ option }}"
        data-tab-index="{{ tabIndex }}"
        bind:tap="onSelect"
      >
        <text>{{ option[textKey] }}</text>
        <van-icon wx:if="{{ utils.isSelected(tab, valueKey, option) }}" name="success" size="18" />
      </view>
    </view>
    <!-- 暂不支持 -->
    <!-- <slot name="options-bottom"></slot> -->
  </van-tab>
</van-tabs>