school_meal_wxapp/components/l-notify/index.wxml

<view hidden="{{!show}}" class="box">
  <van-transition name="slide-down" show="{{ show }}" duration="{{ durations }}">
    <view class="container {{type=='success' ? 'success' : type=='warm' ? 'warm' : 'danger'}}">
      <van-icon name="{{icon}}" />{{message}}
    </view>
  </van-transition>
</view>