Vue实现导航栏点击当前标签变色功能

<template>
 <div class="now-time">
 <div class="timebox">
 <a href="#" rel="external nofollow" v-for="(item,index) in nowTime" v-on:click="addClass(index)"
  v-bind:class="{ bgColors:index==current}">
 <p>{{item.time}}</p>
 <p>{{item.start}}</p>
 </a>
 </div>
 </div>
 
 
</template>
 
<script>
 export default {
 name: "Nowtime",
 methods: {
 addClass:function(index){
  this.current=index;
 }
 },
 mounted() {
 
 },
 data(){
 return{
  current:0,
  nowTime:[
  {
  time:"9:00",
  start:"已开抢"
  },
  {
  time:"10:00",
  start:"已开抢"
  },
  {
  time:"11:00",
  start:"已开抢"
  },
  {
  time:"12:00",
  start:"已开抢"
  },
  {
  time:"13:00",
  start:"未开抢"
  },
  {
  time:"14:00",
  start:"未开抢"
  },
  {
  time:"15:00",
  start:"未开抢"
  },
  ],
 }
 }
 }
</script>
 
<style scoped>
.now-time{
 width: 100%;
 height: .8rem;
 background: #282832;
 display: flex;
 overflow-x:scroll;
}
.timebox{
 width: 100%;
 height: .8rem;
 display: flex;
 background: #282832;
}
 .now-time a{
 display: flex;
 flex-direction: column;
 width: 1.35rem;
 height: .79rem;
 align-items: center;
 flex-shrink: 0;
 }
.now-time a p:first-child{
 font-size: .23rem;
 color: white;
 font-weight: bold;
}
.now-time a p:last-child{
 font-size: .16rem;
 color: white;
}
.timebox .bgColors{
 background: #ff5700;
}
</style>