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<table class="table table-bordered">

    <tr>

      <td><input type="checkbox" id="checkbox" v-model="checked" @change="changeAllChecked()"></td>

      <td>{

      <td>{

      <td>{

      <td>{

      <td>{

      <td>{

   </tr>

   <tr v-for="item in collectionList">

      <td><input type="checkbox" :id="item.name" :value="item.name" v-model="checkedNames"></td>

      <td>{

      <td>{

      <td>{

      <td>{

      <td>{

      <td>{

    </tr>

</table>

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new Vue({

    el: '#app',

    data: {

        collectionList:[{name:'Collection1',model:'zy-asdsa21311231',status:'上线',yn:'y',time:'2019-6-30',ip:'192.168.8.78'},

                  {name:'Collection2',model:'zy-asdsa21311231',status:'失联',yn:'y',time:'2019-6-30',ip:'192.168.8.78'},

                  {name:'Collection3',model:'zy-asdsa21311231',status:'上线',yn:'n',time:'2019-6-30',ip:'192.168.8.78'},

                  {name:'Collection4',model:'zy-asdsa21311231',status:'上线',yn:'y',time:'2019-6-30',ip:'192.168.8.78'},

                  {name:'Collection5',model:'zy-asdsa21311231',status:'失联',yn:'n',time:'2019-6-30',ip:'192.168.8.78'}

          ],

      checkedNames: [],

      checked:false,

    },

    methods: {

        changeAllChecked: function() {

            if (this.checked) {

            var collectionList = this.collectionList

                for(let key in collectionList) {

                  console.log(collectionList[key]);

                  this.checkedNames.push(collectionList[key].name);

                }

            } else {

                this.checkedNames = []

            }

        }

    },

    watch: {

        "checkedNames": function() {

                      console.log(this.checkedNames+"---"+this.collectionList+"----"+this.checked);

            if (this.checkedNames.length == this.collectionList.length) {

                this.checked = true

            } else {

                this.checked = false

            }

        }

    }

})