<label>測試多選渲染：</label><div> <template v-for="item in chks">  <input type="checkbox" name="hobby" :value="item.id"    :checked="loopsss.indexOf(item.id) > -1"/>{{item.name}} </template></div><label>下拉列表測試：</label><div> <select multiple style="width: 100px;">  <template v-for="item in chks">   <option type="checkbox" name="hobby" :value="item.id"         :selected="loopsss.indexOf(item.id) > -1">{{item.name}}   </option>  </template> </select></div><script> export default {  data () {   return {    chks: [     {id:1,name:"吃飯"},     {id:2,name:"睡覺"},     {id:3,name:"打豆豆"},     {id:4,name:"唱歌"},     {id:5,name:"學習"}    ],    loopsss:''   }  },  mounted: function () {   this.init()  },  methods: {   init: function () {    var arr = [1,2,4]//假設這是被選中的愛好    this.loopsss = arr   }  } }</script>