uniapp 微信小程序 实现左侧菜单右侧列表，双向联动的效果

<template>
    <view class="u-wrap">
        <view class="u-search-box">
            <view class="u-search-inner">
                <u-icon name="search" color="#909399" :size="28"></u-icon>
                <text class="u-search-text">搜索</text>
            </view>
        </view>
        <view class="u-menu-wrap">
            <scroll-view style="height: 800rpx;" scroll-y scroll-with-animation class="u-tab-view menu-scroll-view" :scroll-top="scrollTop"
             :scroll-into-view="itemId">
                <view v-for="(item,index) in tabbar" :key="index" class="u-tab-item" :class="[current == index ? 'u-tab-item-active' : '']"
                 @tap.stop="swichMenu(index)">
                    <text class="u-line-1">{{item.name}}</text>
                </view>
            </scroll-view>
            <scroll-view style="height: 800rpx;" :scroll-top="scrollRightTop" scroll-y scroll-with-animation class="right-box" @scroll="rightScroll">
                <view class="page-view">
                    <view class="class-item" :id="'item' + index" v-for="(item , index) in tabbar" :key="index">
                        <view class="item-title">
                            <text>{{item.name}}</text>
                        </view>
                        <view class="item-container">
                            <view class="thumb-box" v-for="(item1, index1) in item.foods" :key="index1">
                                <image class="item-menu-image" :src="item1.icon" mode=""></image>
                                <view class="item-menu-name">{{item1.name}}</view>
                            </view>
                        </view>
                    </view>
                </view>
            </scroll-view>
        </view>
    </view>
</template>
<script>
    import classifyData from '@/common/classify.js';
    export default {
        data() {
            return {
                scrollTop: 0, //tab标题的滚动条位置
                oldScrollTop: 0,
                current: 0, // 预设当前项的值
                menuHeight: 0, // 左边菜单的高度
                menuItemHeight: 0, // 左边菜单item的高度
                itemId: '', // 栏目右边scroll-view用于滚动的id
                tabbar: classifyData,
                menuItemPos: [],
                arr: [],
                scrollRightTop: 0, // 右边栏目scroll-view的滚动条高度
                timer: null, // 定时器
                
            }
        },
        onLoad(option) {

        },
        onReady() {
            this.getMenuItemTop()
        },
        methods: {
            // 点击左边的栏目切换
            async swichMenu(index) {
                if(this.arr.length == 0) {
                    await this.getMenuItemTop();
                }
                if (index == this.current) return;
                this.scrollRightTop = this.oldScrollTop;
                this.$nextTick(function(){
                    this.scrollRightTop = this.arr[index];
                    this.current = index;
                    this.leftMenuStatus(index);
                })
            },
            // 获取一个目标元素的高度
            getElRect(elClass, dataVal) {
                new Promise((resolve, reject) => {
                    const query = uni.createSelectorQuery().in(this);
                    query.select('.' + elClass).fields({
                        size: true
                    }, res => {
                        // 如果节点尚未生成，res值为null，循环调用执行
                        if (!res) {
                            setTimeout(() => {
                                this.getElRect(elClass);
                            }, 10);
                            return;
                        }
                        this[dataVal] = res.height;
                        resolve();
                    }).exec();
                })
            },
            // 观测元素相交状态
            async observer() {
                this.tabbar.map((val, index) => {
                    let observer = uni.createIntersectionObserver(this);
                    // 检测右边scroll-view的id为itemxx的元素与right-box的相交状态
                    // 如果跟.right-box底部相交，就动态设置左边栏目的活动状态
                    observer.relativeTo('.right-box', {
                        top: 0
                    }).observe('#item' + index, res => {
                        if (res.intersectionRatio > 0) {
                            let id = res.id.substring(4);
                            this.leftMenuStatus(id);
                        }
                    })
                })
            },
            // 设置左边菜单的滚动状态
            async leftMenuStatus(index) {
                this.current = index;
                // 如果为0，意味着尚未初始化
                if (this.menuHeight == 0 || this.menuItemHeight == 0) {
                    await this.getElRect('menu-scroll-view', 'menuHeight');
                    await this.getElRect('u-tab-item', 'menuItemHeight');
                }
                // 将菜单活动item垂直居中
                this.scrollTop = index * this.menuItemHeight + this.menuItemHeight / 2 - this.menuHeight / 2;
            },
            // 获取右边菜单每个item到顶部的距离
            getMenuItemTop() {
                new Promise(resolve => {
                    let selectorQuery = uni.createSelectorQuery().in(this);
                    selectorQuery.selectAll('.class-item').boundingClientRect((rects) => {
                        // 如果节点尚未生成，rects值为[](因为用selectAll，所以返回的是数组)，循环调用执行
                        if(!rects.length) {
                            setTimeout(() => {
                                this.getMenuItemTop();
                            }, 10);
                            return ;
                        }
                        rects.forEach((rect) => {
                            // 这里减去rects[0].top，是因为第一项顶部可能不是贴到导航栏(比如有个搜索框的情况)
                            this.arr.push(rect.top - rects[0].top);
                            resolve();
                        })
                    }).exec()
                })
            },
            // 右边菜单滚动
            async rightScroll(e) {
                this.oldScrollTop = e.detail.scrollTop;
                if(this.arr.length == 0) {
                    await this.getMenuItemTop();
                }
                if(this.timer) return ;
                if(!this.menuHeight) {
                    await this.getElRect('menu-scroll-view', 'menuHeight');
                }
                setTimeout(() => { // 节流
                    this.timer = null;
                    // scrollHeight为右边菜单垂直中点位置
                    let scrollHeight = e.detail.scrollTop + this.menuHeight / 2;
                    for (let i = 0; i < this.arr.length; i++) {
                        let height1 = this.arr[i];
                        let height2 = this.arr[i + 1];
                        // 如果不存在height2，意味着数据循环已经到了最后一个，设置左边菜单为最后一项即可
                        if (!height2 || scrollHeight >= height1 && scrollHeight < height2) {
                            this.leftMenuStatus(i);
                            return ;
                        }
                    }
                }, 10)
            }
        }
    }
</script>
 
<style scoped>
    .u-wrap {
        height: calc(100vh);
        /* #ifdef H5 */
        height: calc(100vh - var(--window-top));
        /* #endif */
        display: flex;
        flex-direction: column;
    }
 
    .u-search-box {
        padding: 18rpx 30rpx;
    }
 
    .u-menu-wrap {
        flex: 1;
        display: flex;
        overflow: hidden;
    }
 
    .u-search-inner {
        background-color: rgb(234, 234, 234);
        border-radius: 100rpx;
        display: flex;
        align-items: center;
        padding: 10rpx 16rpx;
    }
 
    .u-search-text {
        font-size: 26rpx;
        color: $u-tips-color;
        margin-left: 10rpx;
    }
 
    .u-tab-view {
        width: 200rpx;
        height: 100%;
    }
 
    .u-tab-item {
        height: 110rpx;
        background: #f6f6f6;
        box-sizing: border-box;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 26rpx;
        color: #444;
        font-weight: 400;
        line-height: 1;
    }
 
    .u-tab-item-active {
        position: relative;
        color: #000;
        font-size: 30rpx;
        font-weight: 600;
        background: #fff;
    }
 
    .u-tab-item-active::before {
        content: "";
        position: absolute;
        border-left: 4px solid $u-type-primary;
        height: 32rpx;
        left: 0;
        top: 39rpx;
    }
 
    .u-tab-view {
        height: 100%;
    }
 
    .right-box {
        background-color: rgb(250, 250, 250);
    }
 
    .page-view {
        padding: 16rpx;
    }
 
    .class-item {
        margin-bottom: 30rpx;
        background-color: #fff;
        padding: 16rpx;
        border-radius: 8rpx;
    }
 
    .class-item:last-child {
        min-height: 100vh;
    }
 
    .item-title {
        font-size: 26rpx;
        color: $u-main-color;
        font-weight: bold;
    }
 
    .item-menu-name {
        font-weight: normal;
        font-size: 24rpx;
        color: $u-main-color;
    }
 
    .item-container {
        display: flex;
        flex-wrap: wrap;
    }
 
    .thumb-box {
        width: 33.333333%;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        margin-top: 20rpx;
    }
 
    .item-menu-image {
        width: 120rpx;
        height: 120rpx;
    }
</style>

在common文件夹下新建classify.js 文件

export default[
   {
      "name": "女装",
      "foods": [
          {
            "name": "A字裙",
            "key": "A字裙",
            "icon": "https://cdn.uviewui.com/uview/common/classify/1/1.jpg",
            "cat": 10
          },
          {
            "name": "T恤",
            "key": "T恤",
            "icon": "https://cdn.uviewui.com/uview/common/classify/1/2.jpg",
            "cat": 10
          },
          {
            "name": "半身裙",
            "key": "半身裙",
            "icon": "https://cdn.uviewui.com/uview/common/classify/1/3.jpg",
            "cat": 10
          },
          {
            "name": "衬衫",
            "key": "衬衫",
            "icon": "https://cdn.uviewui.com/uview/common/classify/1/4.jpg",
            "cat": 10
          },
          {
            "name": "短裙",
            "key": "短裙",
            "icon": "https://cdn.uviewui.com/uview/common/classify/1/5.jpg",
            "cat": 10
          },
          {
            "name": "阔腿裤",
            "key": "阔腿裤",
            "icon": "https://cdn.uviewui.com/uview/common/classify/1/6.jpg",
            "cat": 10
          },
          {
            "name": "连衣裙",
            "key": "连衣裙",
            "icon": "https://cdn.uviewui.com/uview/common/classify/1/7.jpg",
            "cat": 10
          },
          {
            "name": "妈妈装",
            "key": "妈妈装",
            "icon": "https://cdn.uviewui.com/uview/common/classify/1/8.jpg",
            "cat": 10
          },
          {
            "name": "牛仔裤",
            "key": "牛仔裤",
            "icon": "https://cdn.uviewui.com/uview/common/classify/1/9.jpg",
            "cat": 10
          },
          {
            "name": "情侣装",
            "key": "情侣装",
            "icon": "https://cdn.uviewui.com/uview/common/classify/1/10.jpg",
            "cat": 10
          },
          {
            "name": "休闲裤",
            "key": "休闲裤",
            "icon": "https://cdn.uviewui.com/uview/common/classify/1/11.jpg",
            "cat": 10
          },
          {
            "name": "雪纺衫",
            "key": "雪纺衫",
            "icon": "https://cdn.uviewui.com/uview/common/classify/1/12.jpg",
            "cat": 10
          },
          {
            "name": "防晒衣",
            "key": "防晒衣",
            "icon": "https://cdn.uviewui.com/uview/common/classify/1/13.jpg",
            "cat": 10
          },
          {
            "name": "礼服/婚纱",
            "key": "礼服婚纱",
            "icon": "https://cdn.uviewui.com/uview/common/classify/1/14.jpg",
            "cat": 10
          }
      ]
   },
   {
    "name": "美食",
    "foods": [
        {
          "name": "火锅",
          "key": "火锅",
          "icon": "https://cdn.uviewui.com/uview/common/classify/2/1.jpg",
          "cat": 6
        },
        {
          "name": "糕点饼干",
          "key": "糕点饼干",
          "icon": "https://cdn.uviewui.com/uview/common/classify/2/2.jpg",
          "cat": 6
        },
        {
          "name": "坚果果干",
          "key": "坚果果干",
          "icon": "https://cdn.uviewui.com/uview/common/classify/2/3.jpg",
          "cat": 6
        },
        {
          "name": "酒类",
          "key": "酒类",
          "icon": "https://cdn.uviewui.com/uview/common/classify/2/4.jpg",
          "cat": 6
        },
        {
          "name": "辣条",
          "key": "辣条",
          "icon": "https://cdn.uviewui.com/uview/common/classify/2/5.jpg",
          "cat": 6
        },
        {
          "name": "大礼包",
          "key": "大礼包",
          "icon": "https://cdn.uviewui.com/uview/common/classify/2/6.jpg",
          "cat": 6
        },
        {
          "name": "精品茗茶",
          "key": "茶",
          "icon": "https://cdn.uviewui.com/uview/common/classify/2/7.jpg",
          "cat": 6
        },
        {
          "name": "休闲食品",
          "key": "休闲食品",
          "icon": "https://cdn.uviewui.com/uview/common/classify/2/8.jpg",
          "cat": 6
        },
        {
          "name": "糖果巧克力",
          "key": "糖果巧克力",
          "icon": "https://cdn.uviewui.com/uview/common/classify/2/9.jpg",
          "cat": 6
        },
        {
          "name": "方便速食",
          "key": "方便速食",
          "icon": "https://cdn.uviewui.com/uview/common/classify/2/10.jpg",
          "cat": 6
        },
        {
          "name": "营养代餐",
          "key": "营养代餐",
          "icon": "https://cdn.uviewui.com/uview/common/classify/2/11.jpg",
          "cat": 6
        },
        {
          "name": "粮油副食",
          "key": "粮油",
          "icon": "https://cdn.uviewui.com/uview/common/classify/2/12.jpg",
          "cat": 6
        },
        {
          "name": "生鲜水果",
          "key": "水果",
          "icon": "https://cdn.uviewui.com/uview/common/classify/2/13.jpg",
          "cat": 6
        },
        {
          "name": "饮品",
          "key": "饮品",
          "icon": "https://cdn.uviewui.com/uview/common/classify/2/14.jpg",
          "cat": 6
        }
        ]
    },
    {
        "name": "美妆",
        "foods": [
            {
                "name": "化妆刷",
                "key": "化妆刷",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/1.jpg",
                "cat": 3
            },
            {
                "name": "粉底",
                "key": "粉底",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/2.jpg",
                "cat": 3
            },
            {
                "name": "洗发护发",
                "key": "洗发护发",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/3.jpg",
                "cat": 3
            },
            {
                "name": "美容工具",
                "key": "美容工具",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/4.jpg",
                "cat": 3
            },
            {
                "name": "眼部护理",
                "key": "眼部护理",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/5.jpg",
                "cat": 3
            },
            {
                "name": "眉妆",
                "key": "眉妆",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/6.jpg",
                "cat": 3
            },
            {
                "name": "卸妆品",
                "key": "卸妆品",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/7.jpg",
                "cat": 3
            },
            {
                "name": "基础护肤",
                "key": "基础护肤",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/8.jpg",
                "cat": 3
            },
            {
                "name": "眼妆",
                "key": "眼妆",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/9.jpg",
                "cat": 3
            },
            {
                "name": "唇妆",
                "key": "唇妆",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/10.jpg",
                "cat": 3
            },
            {
                "name": "面膜",
                "key": "面膜",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/11.jpg",
                "cat": 3
            },
            {
                "name": "沐浴用品",
                "key": "沐浴用品",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/12.jpg",
                "cat": 3
            },
            {
                "name": "护肤套装",
                "key": "护肤套装",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/13.jpg",
                "cat": 3
            },
            {
                "name": "防晒品",
                "key": "防晒品",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/14.jpg",
                "cat": 3
            },
            {
                "name": "美甲",
                "key": "美甲",
                "icon": "https://cdn.uviewui.com/uview/common/classify/3/15.jpg",
                "cat": 3
            }
 
        ]
    },
    {
        "name": "居家日用",
        "foods": [
            {
              "name": "垃圾袋",
              "key": "垃圾袋",
              "icon": "https://cdn.uviewui.com/uview/common/classify/4/1.jpg",
              "cat": 4
            },
            {
                "name": "纸巾",
                "key": "纸巾",
                "icon": "https://cdn.uviewui.com/uview/common/classify/4/2.jpg",
                "cat": 4
            },
            {
                "name": "驱蚊用品",
                "key": "驱蚊用品",
                "icon": "https://cdn.uviewui.com/uview/common/classify/4/3.jpg",
                "cat": 4
            },
            {
                "name": "收纳神器",
                "key": "收纳神器",
                "icon": "https://cdn.uviewui.com/uview/common/classify/4/4.jpg",
                "cat": 4
            },
            {
                "name": "厨房用品",
                "key": "厨房用品",
                "icon": "https://cdn.uviewui.com/uview/common/classify/4/5.jpg",
                "cat": 4
            },
            {
                "name": "厨房烹饪",
                "key": "烹饪",
                "icon": "https://cdn.uviewui.com/uview/common/classify/4/6.jpg",
                "cat": 4
            },
            {
                "name": "衣物晾晒",
                "key": "衣物晾晒",
                "icon": "https://cdn.uviewui.com/uview/common/classify/4/7.jpg",
                "cat": 4
            },
            {
                "name": "衣物护理",
                "key": "衣物护理",
                "icon": "https://cdn.uviewui.com/uview/common/classify/4/8.jpg",
                "cat": 4
            },
            {
                "name": "宠物用品",
                "key": "宠物用品",
                "icon": "https://cdn.uviewui.com/uview/common/classify/4/9.jpg",
                "cat": 4
            },
            {
                "name": "医药保健",
                "key": "医药",
                "icon": "https://cdn.uviewui.com/uview/common/classify/4/10.jpg",
                "cat": 4
            },
            {
                "name": "日用百货",
                "key": "百货",
                "icon": "https://cdn.uviewui.com/uview/common/classify/4/11.jpg",
                "cat": 4
            },
            {
                "name": "清洁用品",
                "key": "清洁",
                "icon": "https://cdn.uviewui.com/uview/common/classify/4/12.jpg",
                "cat": 4
            },
            {
                "name": "绿植园艺",
                "key": "绿植",
                "icon": "https://cdn.uviewui.com/uview/common/classify/4/13.jpg",
                "cat": 4
            }
        ]
    },
    {
        "name": "男装",
        "foods": [
            {
                "name": "爸爸装",
                "key": "爸爸装",
                "icon": "https://cdn.uviewui.com/uview/common/classify/5/1.jpg",
                "cat": 12
            },
            {
                "name": "牛仔裤",
                "key": "牛仔裤",
                "icon": "https://cdn.uviewui.com/uview/common/classify/5/2.jpg",
                "cat": 12
            },
            {
                "name": "衬衫",
                "key": "衬衫",
                "icon": "https://cdn.uviewui.com/uview/common/classify/5/3.jpg",
                "cat": 12
            },
            {
                "name": "休闲裤",
                "key": "休闲裤",
                "icon": "https://cdn.uviewui.com/uview/common/classify/5/4.jpg",
                "cat": 12
            },
            {
                "name": "外套",
                "key": "外套",
                "icon": "https://cdn.uviewui.com/uview/common/classify/5/5.jpg",
                "cat": 12
            },
            {
                "name": "T恤",
                "key": "T恤",
                "icon": "https://cdn.uviewui.com/uview/common/classify/5/6.jpg",
                "cat": 12
            },
            {
                "name": "套装",
                "key": "套装",
                "icon": "https://cdn.uviewui.com/uview/common/classify/5/7.jpg",
                "cat": 12
            },
            {
                "name": "运动裤",
                "key": "运动裤",
                "icon": "https://cdn.uviewui.com/uview/common/classify/5/8.jpg",
                "cat": 12
            },
            {
                "name": "马甲/背心",
                "key": "马甲背心",
                "icon": "https://cdn.uviewui.com/uview/common/classify/5/9.jpg",
                "cat": 12
            },
            {
                "name": "POLO衫",
                "key": "POLO衫",
                "icon": "https://cdn.uviewui.com/uview/common/classify/5/10.jpg",
                "cat": 12
            },
            {
                "name": "商务装",
                "key": "商务装",
                "icon": "https://cdn.uviewui.com/uview/common/classify/5/11.jpg",
                "cat": 12
            }
        ]
    },
    {
        "name": "鞋品",
        "foods": [
            {
                "name": "单鞋",
                "key": "单鞋",
                "icon": "https://cdn.uviewui.com/uview/common/classify/6/1.jpg",
                "cat": 5
            },
            {
                "name": "皮鞋",
                "key": "皮鞋",
                "icon": "https://cdn.uviewui.com/uview/common/classify/6/2.jpg",
                "cat": 5
            },
            {
                "name": "帆布鞋",
                "key": "帆布鞋",
                "icon": "https://cdn.uviewui.com/uview/common/classify/6/3.jpg",
                "cat": 5
            },
            {
                "name": "北京老布鞋",
                "key": "北京老布鞋",
                "icon": "https://cdn.uviewui.com/uview/common/classify/6/4.jpg",
                "cat": 5
            },
            {
                "name": "运动鞋",
                "key": "运动鞋",
                "icon": "https://cdn.uviewui.com/uview/common/classify/6/5.jpg",
                "cat": 5
            },
            {
                "name": "拖鞋",
                "key": "拖鞋",
                "icon": "https://cdn.uviewui.com/uview/common/classify/6/6.jpg",
                "cat": 5
            },
            {
                "name": "凉鞋",
                "key": "凉鞋",
                "icon": "https://cdn.uviewui.com/uview/common/classify/6/7.jpg",
                "cat": 5
            },
            {
                "name": "休闲鞋",
                "key": "休闲鞋",
                "icon": "https://cdn.uviewui.com/uview/common/classify/6/8.jpg",
                "cat": 5
            },
            {
                "name": "高跟鞋",
                "key": "高跟鞋",
                "icon": "https://cdn.uviewui.com/uview/common/classify/6/9.jpg",
                "cat": 5
            },
            {
                "name": "老人鞋",
                "key": "老人鞋",
                "icon": "https://cdn.uviewui.com/uview/common/classify/6/10.jpg",
                "cat": 5
            },
            {
                "name": "懒人鞋",
                "key": "懒人鞋",
                "icon": "https://cdn.uviewui.com/uview/common/classify/6/11.jpg",
                "cat": 5
            }
        ]
    },
    {
        "name": "数码家电",
        "foods": [
            {
                "name": "数据线",
                "key": "数据线",
                "icon": "https://cdn.uviewui.com/uview/common/classify/7/1.jpg",
                "cat": 8
            },
            {
                "name": "耳机",
                "key": "耳机",
                "icon": "https://cdn.uviewui.com/uview/common/classify/7/2.jpg",
                "cat": 8
            },
            {
                "name": "生活家电",
                "key": "家电",
                "icon": "https://cdn.uviewui.com/uview/common/classify/7/3.jpg",
                "cat": 8
            },
            {
                "name": "电风扇",
                "key": "电风扇",
                "icon": "https://cdn.uviewui.com/uview/common/classify/7/4.jpg",
                "cat": 8
            },
            {
                "name": "电吹风",
                "key": "电吹风",
                "icon": "https://cdn.uviewui.com/uview/common/classify/7/5.jpg",
                "cat": 8
            },
            {
                "name": "手机壳",
                "key": "手机壳",
                "icon": "https://cdn.uviewui.com/uview/common/classify/7/6.jpg",
                "cat": 8
            },
            {
                "name": "榨汁机",
                "key": "榨汁机",
                "icon": "https://cdn.uviewui.com/uview/common/classify/7/7.jpg",
                "cat": 8
            },
            {
                "name": "小家电",
                "key": "小家电",
                "icon": "https://cdn.uviewui.com/uview/common/classify/7/8.jpg",
                "cat": 8
            },
            {
                "name": "数码电子",
                "key": "数码",
                "icon": "https://cdn.uviewui.com/uview/common/classify/7/9.jpg",
                "cat": 8
            },
            {
                "name": "电饭锅",
                "key": "电饭锅",
                "icon": "https://cdn.uviewui.com/uview/common/classify/7/10.jpg",
                "cat": 8
            },
            {
                "name": "手机支架",
                "key": "手机支架",
                "icon": "https://cdn.uviewui.com/uview/common/classify/7/11.jpg",
                "cat": 8
            },
            {
                "name": "剃须刀",
                "key": "剃须刀",
                "icon": "https://cdn.uviewui.com/uview/common/classify/7/12.jpg",
                "cat": 8
            },
            {
                "name": "充电宝",
                "key": "充电宝",
                "icon": "https://cdn.uviewui.com/uview/common/classify/7/13.jpg",
                "cat": 8
            },
            {
                "name": "手机配件",
                "key": "手机配件",
                "icon": "https://cdn.uviewui.com/uview/common/classify/7/14.jpg",
                "cat": 8
            }
        ]
    },
    {
        "name": "母婴",
        "foods": [
            {
              "name": "婴童服饰",
              "key": "衣服",
              "icon": "https://cdn.uviewui.com/uview/common/classify/8/1.jpg",
              "cat": 2  
            },
            {
                "name": "玩具乐器",
                "key": "玩具乐器",
                "icon": "https://cdn.uviewui.com/uview/common/classify/8/2.jpg",
                "cat": 2  
            },
            {
                "name": "尿不湿",
                "key": "尿不湿",
                "icon": "https://cdn.uviewui.com/uview/common/classify/8/3.jpg",
                "cat": 2  
            },
            {
                "name": "安抚牙胶",
                "key": "安抚牙胶",
                "icon": "https://cdn.uviewui.com/uview/common/classify/8/4.jpg",
                "cat": 2  
            },
            {
                "name": "奶瓶奶嘴",
                "key": "奶瓶奶嘴",
                "icon": "https://cdn.uviewui.com/uview/common/classify/8/5.jpg",
                "cat": 2  
            },
            {
                "name": "孕妈用品",
                "key": "孕妈用品",
                "icon": "https://cdn.uviewui.com/uview/common/classify/8/6.jpg",
                "cat": 2  
            },
            {
                "name": "宝宝用品",
                "key": "宝宝用品",
                "icon": "https://cdn.uviewui.com/uview/common/classify/8/7.jpg",
                "cat": 2  
            },
            {
                "name": "婴童湿巾",
                "key": "湿巾",
                "icon": "https://cdn.uviewui.com/uview/common/classify/8/8.jpg",
                "cat": 2  
            },
            {
                "name": "喂养洗护",
                "key": "洗护",
                "icon": "https://cdn.uviewui.com/uview/common/classify/8/9.jpg",
                "cat": 2  
            },
            {
                "name": "婴童鞋靴",
                "key": "童鞋",
                "icon": "https://cdn.uviewui.com/uview/common/classify/8/10.jpg",
                "cat": 2  
            },
            {
                "name": "口水巾",
                "key": "口水巾",
                "icon": "https://cdn.uviewui.com/uview/common/classify/8/11.jpg",
                "cat": 2  
            },
            {
                "name": "营养辅食",
                "key": "营养",
                "icon": "https://cdn.uviewui.com/uview/common/classify/8/12.jpg",
                "cat": 2  
            },
            {
                "name": "婴幼书籍",
                "key": "书籍",
                "icon": "https://cdn.uviewui.com/uview/common/classify/8/13.jpg",
                "cat": 2  
            },
            {
                "name": "婴儿车",
                "key": "婴儿车",
                "icon": "https://cdn.uviewui.com/uview/common/classify/8/14.jpg",
                "cat": 2  
            }
        ]
    },
    {
        "name": "箱包",
        "foods": [
            {
                "name": "单肩包",
                "key": "单肩包",
                "icon": "https://cdn.uviewui.com/uview/common/classify/9/1.jpg",
                "cat": 0
            },
            {
                "name": "斜挎包",
                "key": "斜挎包",
                "icon": "https://cdn.uviewui.com/uview/common/classify/9/2.jpg",
                "cat": 0
            },
            {
                "name": "女包",
                "key": "女包",
                "icon": "https://cdn.uviewui.com/uview/common/classify/9/3.jpg",
                "cat": 0
            },
            {
                "name": "男包",
                "key": "男包",
                "icon": "https://cdn.uviewui.com/uview/common/classify/9/4.jpg",
                "cat": 0
            },
            {
                "name": "双肩包",
                "key": "双肩包",
                "icon": "https://cdn.uviewui.com/uview/common/classify/9/5.jpg",
                "cat": 0
            },
            {
                "name": "小方包",
                "key": "小方包",
                "icon": "https://cdn.uviewui.com/uview/common/classify/9/6.jpg",
                "cat": 0
            },
            {
                "name": "钱包",
                "key": "钱包",
                "icon": "https://cdn.uviewui.com/uview/common/classify/9/7.jpg",
                "cat": 0
            },
            {
                "name": "旅行箱包",
                "key": "旅行箱包",
                "icon": "https://cdn.uviewui.com/uview/common/classify/9/8.jpg",
                "cat": 0
            },
            {
                "name": "零钱包",
                "key": "零钱包",
                "icon": "https://cdn.uviewui.com/uview/common/classify/9/9.jpg",
                "cat": 0
            },
            {
                "name": "手提包",
                "key": "手提包",
                "icon": "https://cdn.uviewui.com/uview/common/classify/9/10.jpg",
                "cat": 0
            },
            {
                "name": "胸包",
                "key": "胸包",
                "icon": "https://cdn.uviewui.com/uview/common/classify/9/11.jpg",
                "cat": 0
            }
        ]
    },
    {
        "name": "内衣",
        "foods": [
            {
                "name": "袜子",
                "key": "袜子",
                "icon": "https://cdn.uviewui.com/uview/common/classify/10/1.jpg",
                "cat": 11
            },
            {
                "name": "吊带背心",
                "key": "吊带背心",
                "icon": "https://cdn.uviewui.com/uview/common/classify/10/2.jpg",
                "cat": 11
            },
            {
                "name": "抹胸",
                "key": "抹胸",
                "icon": "https://cdn.uviewui.com/uview/common/classify/10/3.jpg",
                "cat": 11
            },
            {
                "name": "内裤",
                "key": "内裤",
                "icon": "https://cdn.uviewui.com/uview/common/classify/10/4.jpg",
                "cat": 11
            },
            {
                "name": "文胸",
                "key": "文胸",
                "icon": "https://cdn.uviewui.com/uview/common/classify/10/5.jpg",
                "cat": 11
            },
            {
                "name": "文胸套装",
                "key": "文胸套装",
                "icon": "https://cdn.uviewui.com/uview/common/classify/10/6.jpg",
                "cat": 11
            },
            {
                "name": "打底塑身",
                "key": "打底塑身",
                "icon": "https://cdn.uviewui.com/uview/common/classify/10/7.jpg",
                "cat": 11
            },
            {
                "name": "家居服",
                "key": "家居服",
                "icon": "https://cdn.uviewui.com/uview/common/classify/10/8.jpg",
                "cat": 11
            },
            {
                "name": "船袜",
                "key": "船袜",
                "icon": "https://cdn.uviewui.com/uview/common/classify/10/9.jpg",
                "cat": 11
            },
            {
                "name": "情侣睡衣",
                "key": "情侣睡衣",
                "icon": "https://cdn.uviewui.com/uview/common/classify/10/10.jpg",
                "cat": 11
            },
            {
                "name": "丝袜",
                "key": "丝袜",
                "icon": "https://cdn.uviewui.com/uview/common/classify/10/11.jpg",
                "cat": 11
            }
        ]
    },
    {
        "name": "文娱车品",
        "foods": [
            {
                "name": "车市车品",
                "key": "车市车品",
                "icon": "https://cdn.uviewui.com/uview/common/classify/11/1.jpg",
                "cat": 7
            },
            {
                "name": "办公文具",
                "key": "办公文具",
                "icon": "https://cdn.uviewui.com/uview/common/classify/11/2.jpg",
                "cat": 7
            },
            {
                "name": "考试必备",
                "key": "考试必备",
                "icon": "https://cdn.uviewui.com/uview/common/classify/11/3.jpg",
                "cat": 7
            },
            {
                "name": "笔记本",
                "key": "笔记本",
                "icon": "https://cdn.uviewui.com/uview/common/classify/11/4.jpg",
                "cat": 7
            },
            {
                "name": "艺术礼品",
                "key": "礼品",
                "icon": "https://cdn.uviewui.com/uview/common/classify/11/5.jpg",
                "cat": 7
            },
            {
                "name": "书写工具",
                "key": "书写工具",
                "icon": "https://cdn.uviewui.com/uview/common/classify/11/6.jpg",
                "cat": 7
            },
            {
                "name": "车载电器",
                "key": "车载电器",
                "icon": "https://cdn.uviewui.com/uview/common/classify/11/7.jpg",
                "cat": 7
            },
            {
                "name": "图书音像",
                "key": "图书音像",
                "icon": "https://cdn.uviewui.com/uview/common/classify/11/8.jpg",
                "cat": 7
            },
            {
                "name": "画具画材",
                "key": "画具画材",
                "icon": "https://cdn.uviewui.com/uview/common/classify/11/9.jpg",
                "cat": 7
            }
        ]
    },
    {
        "name": "配饰",
        "foods": [
            {
                "name": "太阳镜",
                "key": "太阳镜",
                "icon": "https://cdn.uviewui.com/uview/common/classify/12/1.jpg",
                "cat": 0
            },
            {
                "name": "皮带",
                "key": "皮带",
                "icon": "https://cdn.uviewui.com/uview/common/classify/12/2.jpg",
                "cat": 0
            },
            {
                "name": "棒球帽",
                "key": "棒球帽",
                "icon": "https://cdn.uviewui.com/uview/common/classify/12/3.jpg",
                "cat": 0
            },
            {
                "name": "手表",
                "key": "手表",
                "icon": "https://cdn.uviewui.com/uview/common/classify/12/4.jpg",
                "cat": 0
            },
            {
                "name": "发饰",
                "key": "发饰",
                "icon": "https://cdn.uviewui.com/uview/common/classify/12/5.jpg",
                "cat": 0
            },
            {
                "name": "项链",
                "key": "项链",
                "icon": "https://cdn.uviewui.com/uview/common/classify/12/6.jpg",
                "cat": 0
            },
            {
                "name": "手饰",
                "key": "手饰",
                "icon": "https://cdn.uviewui.com/uview/common/classify/12/7.jpg",
                "cat": 0
            },
            {
                "name": "耳环",
                "key": "耳环",
                "icon": "https://cdn.uviewui.com/uview/common/classify/12/8.jpg",
                "cat": 0
            },
            {
                "name": "帽子丝巾",
                "key": "帽子丝巾",
                "icon": "https://cdn.uviewui.com/uview/common/classify/12/9.jpg",
                "cat": 0
            },
            {
                "name": "眼镜墨镜",
                "key": "眼镜墨镜",
                "icon": "https://cdn.uviewui.com/uview/common/classify/12/10.jpg",
                "cat": 0
            },
            {
                "name": "发带发箍",
                "key": "发带发箍",
                "icon": "https://cdn.uviewui.com/uview/common/classify/12/11.jpg",
                "cat": 0
            }
        ]
    },
    {
        "name": "家装家纺",
        "foods": [
            {
                "name": "家居饰品",
                "key": "家居饰品",
                "icon": "https://cdn.uviewui.com/uview/common/classify/13/1.jpg",
                "cat": 0
            },
            {
                "name": "凉席",
                "key": "凉席",
                "icon": "https://cdn.uviewui.com/uview/common/classify/13/2.jpg",
                "cat": 0
            },
            {
                "name": "背枕靠枕",
                "key": "靠枕",
                "icon": "https://cdn.uviewui.com/uview/common/classify/13/3.jpg",
                "cat": 0
            },
            {
                "name": "床上用品",
                "key": "床上用品",
                "icon": "https://cdn.uviewui.com/uview/common/classify/13/4.jpg",
                "cat": 0
            },
            {
                "name": "摆件",
                "key": "摆件",
                "icon": "https://cdn.uviewui.com/uview/common/classify/13/5.jpg",
                "cat": 0
            },
            {
                "name": "四件套",
                "key": "四件套",
                "icon": "https://cdn.uviewui.com/uview/common/classify/13/6.jpg",
                "cat": 0
            },
            {
                "name": "装饰品",
                "key": "装饰品",
                "icon": "https://cdn.uviewui.com/uview/common/classify/13/7.jpg",
                "cat": 0
            },
            {
                "name": "卫浴用品",
                "key": "卫浴",
                "icon": "https://cdn.uviewui.com/uview/common/classify/13/8.jpg",
                "cat": 0
            },
            {
                "name": "家居家装",
                "key": "家具",
                "icon": "https://cdn.uviewui.com/uview/common/classify/13/9.jpg",
                "cat": 0
            },
            {
                "name": "蚊帐",
                "key": "蚊帐",
                "icon": "https://cdn.uviewui.com/uview/common/classify/13/10.jpg",
                "cat": 0
            },
            {
                "name": "墙纸贴纸",
                "key": "墙纸",
                "icon": "https://cdn.uviewui.com/uview/common/classify/13/11.jpg",
                "cat": 0
            },
            {
                "name": "空调被",
                "key": "空调被",
                "icon": "https://cdn.uviewui.com/uview/common/classify/13/12.jpg",
                "cat": 0
            }
        ]
    },
    {
        "name": "户外运动",
        "foods": [
            {
                "name": "游泳装备",
                "key": "游泳",
                "icon": "https://cdn.uviewui.com/uview/common/classify/14/1.jpg",
                "cat": 0
            },
            {
                "name": "泳镜",
                "key": "泳镜",
                "icon": "https://cdn.uviewui.com/uview/common/classify/14/2.jpg",
                "cat": 0
            },
            {
                "name": "户外装备",
                "key": "户外",
                "icon": "https://cdn.uviewui.com/uview/common/classify/14/3.jpg",
                "cat": 0
            },
            {
                "name": "健身服饰",
                "key": "健身",
                "icon": "https://cdn.uviewui.com/uview/common/classify/14/4.jpg",
                "cat": 0
            },
            {
                "name": "泳衣",
                "key": "泳衣",
                "icon": "https://cdn.uviewui.com/uview/common/classify/14/5.jpg",
                "cat": 0
            },
            {
                "name": "瑜伽垫",
                "key": "瑜伽垫",
                "icon": "https://cdn.uviewui.com/uview/common/classify/14/6.jpg",
                "cat": 0
            },
            {
                "name": "瑜伽用品",
                "key": "瑜伽",
                "icon": "https://cdn.uviewui.com/uview/common/classify/14/7.jpg",
                "cat": 0
            },
            {
                "name": "健身装备",
                "key": "健身",
                "icon": "https://cdn.uviewui.com/uview/common/classify/14/8.jpg",
                "cat": 0
            },
            {
                "name": "球迷用品",
                "key": "球迷",
                "icon": "https://cdn.uviewui.com/uview/common/classify/14/9.jpg",
                "cat": 0
            }
        ]
    }
]

 

.in(this)