2. Vue uuid使用 随机生成id

<template>
  <div :id="elId" class="container"> </div>
</template>

<script>
  import {v4}  from 'uuid' // npm install -S uuid
  export default {
    data () {
      return {
        elId: ''
      }
    },
    created(){
      this.elId = v4() // 避免key重复
    }
 }
<script>