前端根据下标来显示不同的内容

html

      <p class="label-item " @click="selectNode(-1)" :class="{labelactive:nlabel==-1}" >全部</p>
      <p class="label-item" @click="selectNode(index)" :class="{labelactive:nlabel==index}" v-for="(e,index) in label[id]" :key="index">{{e}}</p>

js

methods:{
    // 切换label标签
    selectNode(e){
      this.nlabel = e
    }
  }