karamay_wx/pages/index/active-page/active-page.wxml

<view class="preview-contain">
  <view class="time-select">
    <active-time-select activity-data="{{activityData}}" bind:datechange="onDateChange"></active-time-select>
    <view class="divider"></view>
    <view class="select-moon" wx:if="{{selectedDate}}">
      <view class="next-btn {{!selectedDate ? 'disabled' : ''}}" bindtap="goNext" disabled="{{!selectedDate}}">下一步</view>
    </view>
  </view>
</view>