Solution to the routing highlighting problem of Vue components

.router{
        font: 12px/40px 'Microsoft YaHei';
        background: pink;
        background: pink;
        color: white;
        cursor: pointer;
        text-align: center;
        display: inline-block;
        width: 40px;
        background: pink;
        &.isActive{
            background: blue;
            color:red;
        }
    }

<template>
<div id="main">
    <ul style="height:40px;background:pink;">
        <li class="router" v-for="(item,index) in items" :key="index" style="float:left;" :class="item.isActive?'isActive':''" @click="routerTo(item,index)">
            <span >{{item.name}}</span>
        </li>
    </ul>
    <router-view></router-view>
    </div>
    
</template>
<script>
    export default {
        data () {
            return {
                activeIndex2:'0',
                items:[
                    {name:'twoPage',code:'twoPage',path:'/twoPage',defaultIcon:require('@/assets/icon/BehaviorRank-default.png'),
                    activeIcon:require('@/assets/icon/behaviorrank-active.png'),isActive:true},
                    {name:'three',code:'three',path:'/three',defaultIcon:require('@/assets/icon/ChannelAllocation-default.png'),
                    activeIcon:require('@/assets/icon/ChannelAllocation-active.png'),isActive:false},
                    {name:'four',code:'four',path:'/four',defaultIcon:require('@/assets/icon/myReport-default.png'),
                    activeIcon:require('@/assets/icon/myReport-active.png'),isActive:false},
                ],
            }
        },
        methods:{
            routerTo(item,index) {
                 for (let i = 0; i < this.items.length; i++) {
                    this.items[i].isActive=false
                    
                }
                this.items[index].isActive=true
                this.$router.push({name:item.name})
               
            },
        }
    }
</script>
<style lang='less'>
#main{
    .router{
        font: 12px/40px 'Microsoft YaHei';
        background: pink;
        background: pink;
        color: white;
        cursor: pointer;
        text-align: center;
        display: inline-block;
        width: 40px;
        background: pink;
        
    }
    .isActive{
            background: blue;
            color:red;
        }
    
}

</style>

created(){
            // var path=window.location.hash.slice(2); //This is also acceptable when there is no parameter, but is not recommended var path=this.$route.name //This is recommended console.log(path)
            if(path){
                for (let i = 0; i < this.items.length; i++) {
                    this.items[i].isActive=false
                }
                switch(path){
                    case 'twoPage':
                    this.items[0].isActive=true;
                    break;
    
                    case 'three':
                    this.items[1].isActive=true;
                    break;
    
                    case 'four':
                    this.items[2].isActive=true;
                    break;
                }
            }
        },

.router-link-active{
 background: rgba(255,255,255,0.8);
 color: gray;
 }

<template>
 <nav>
  <ul>
  <li>
   <router-link to="/" exact>blog</router-link>
   <router-link to="/AddBlog" exact>Write a blog</router-link>
  </li>
  </ul>
 </nav>
</template>
 
<script>
 export default {
  name: "bolgheader"
 }
</script>
 
<style scoped>
 ul{
 list-style-type: none;
 text-align: center;
 margin:0;
 }
 li{
 display: inline-block;
 margin:0 10px;
 }
 a{
 color:rgb(102, 119, 204);
 text-decoration: none;
 padding:12px;
 border-radius: 5px;
 font-size:20px;
 }
 nav{
 background: #eee;
 padding: 30px 0;
 margin-bottom: 40px;
 }
 .router-link-active{
 background: rgba(255,255,255,0.8);
 color: gray;
 }
</style>