<label>测试多选渲染：</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>下拉列表测试：</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:"吃饭"},
     {id:2,name:"睡觉"},
     {id:3,name:"打豆豆"},
     {id:4,name:"唱歌"},
     {id:5,name:"学习"}
    ],
    loopsss:''
   }
  },
  mounted: function () {
   this.init()
  },
  methods: {
   init: function () {
    var arr = [1,2,4]//假设这是被选中的爱好
    this.loopsss = arr
   }
  }
 }
</script>