<!--pages/demo/demo.wxml-->
<view class="box">
  <scroll-view scroll-x="true" class="scroll">
    <view wx:for="{{list}}" class="item">
      {{item.text}}
    </view>
  </scroll-view>
  <view class="arrow" bindtap="pullDown">
    <image src="/images/04-01/arrow.png">
    </image>
  </view>
  <view wx:if="{{show}}" class="pullDownBox">
    <view class="mainClassify">
      全部分类
    </view>
     <view wx:for="{{list}}" class="downItem" catchtap="">
         {{item.text}}
     </view>
  </view>
</view>
<view class="mask" wx:if="{{show}}" catchtap="pullDown">
</view>