vue实现类目筛选功能

效果图如下：

代码如下：

<template>
<div>
    <dl v-for="(listItem,listIndex) in listData" :key="listItem.id">
        <div class="flex-box">
            <dt>
              {{listItem.title}}
            dt>
            <dd v-for="(minItem,minIndex) in listItem.list" :key="minItem" :class="minIndex==listItem.index?'active':''" @click="handClick(minItem,listIndex,listItem,minIndex)">{{minItem}}dd>
        div>
    dl>
    <div class="list-box">
        <h4>你选择的属性:h4>
        <p v-if="!Object.keys(chooseList).length">暂无选择p>
        <p class="chooseItem" v-for="(value,key) in chooseList" :key="key">{{value}}<span @click="handleDel(key)">xspan>p>
    div>
div>
template>

<script>
export default {
    data() {
        return {
          
            listData: [{
                    title: '品牌',
                    id: 1,
                    list: ['美的', '海尔', '格力', '三星', '惠普', '长虹']
                },
                {
                    title: '价格',
                    id: 2,
                    list: ['2000-3000', '2100-2500', '3500-6000', '1000-2000', '1500-4000', '6000-7000']
                },
                {
                    title: '制冷面积',
                    id: 3,
                    list: ['120平方米', '130平方米', '140平方米', '150平方米', '160平方米', '170平方米']
                },
            ],
            chooseList:{
            // 0:'美的',
            //1:'2000-300'，
            }
        }
    },
    methods: {
       
        handClick(minItem,listIndex,listItem,minIndex){
            listItem.index = minIndex
            console.log(minItem,listIndex,listItem)
            this.$set(this.chooseList,listIndex,minItem)
        },
        handleDel(key){
            console.log(key)
            this.$delete(this.chooseList,key)
            this.listData[key].index = null
            console.log(this.listData)
        }
    },
}
script>

<style lang="less" scoped>
.flex-box{
  display: flex;
}
dl,dd,dt{
  cursor: pointer;
}
dl{
    border-bottom: 1px dashed #ccc;
}
dd{
    margin-left: 10px;
}
dt{
    background: gray;
    padding: 4px 10px;
    color: #fff;
}
.list-box{
    display: flex;
    align-items: center;
    h4{
        margin-right: 15px;
    }
    p{
        color: #ccc;
        margin-right: 10px;
    }
    .chooseItem{
        border:1px solid red;
        padding: 4px 10px;
        color: red;
        span{
            padding-left: 10px;
            cursor: pointer;
        }
    }
}
.active{

    color: red;
}
style>

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