litemall/litemall-wx/pages/category/category.wxml

<view class="container">
  <view class="cate-nav">
    <scroll-view scroll-x="true" class="cate-nav-body" style="width: 750rpx;" scroll-left="{{scrollLeft}}">
      <view wx:for="{{navList}}" class="item {{ id == item.id ? 'active' : ''}}" wx:key="id" data-id="{{item.id}}" data-index="{{index}}" bindtap="switchCate">
        <view class="name">{{item.name}}</view>
      </view>
    </scroll-view>
  </view>
  <scroll-view scroll-y="true" scroll-top="{{scrollTop}}" style="height:{{scrollHeight}}px;">

    <view class="cate-item">
      <view class="h">
        <text class="name">{{currentCategory.name}}</text>
        <text class="desc">{{currentCategory.desc}}</text>
      </view>
      <view class="b">
        <navigator class="item {{(iindex + 1) % 2 == 0 ? 'item-b' : ''}}" url="/pages/goods/goods?id={{iitem.id}}" wx:for="{{goodsList}}" wx:key="id" wx:for-item="iitem" wx:for-index="iindex">
          <image class="img" src="{{iitem.picUrl}}" background-size="cover"></image>
          <text class="name">{{iitem.name}}</text>
          <text class="price">￥{{iitem.retailPrice}}</text>
        </navigator>
      </view>
    </view>
  </scroll-view>
</view>