SOURCE

var Main = {
  data() {
    return {
      ids:[],
      tableData: []
    }
  },
  methods:{
  	setSelection(){
      this.ids = [1,2]
    },
  },
  created () {
    var list = []
    for(var index = 0; index < 100; index++){
      list.push({
        id: index,
        name: 'test' + index,
        role: 'developer',
        sex: 'Man',
        date: '2019-05-01',
        time: 1556677810888 + index * 500,
        region: 'ShenZhen',
        address: 'address abc' + index
      })
    }
    this.tableData = list
  }
};
var Ctor = Vue.extend(Main);
new Ctor().$mount('#app')

<script src="//unpkg.com/vue"></script>
<script src="//unpkg.com/xe-utils"></script>
<script src="//unpkg.com/vxe-table"></script>
<script src="https://cdn.bootcss.com/lodash.js/4.17.15/lodash.min.js"></script>

<div id="app">
  <template>
    <div>
       <vxe-button @click="setSelection()"
          >选中</vxe-button
        >
      {{ids}}
      <vxe-table 
        ref="xTree"
        border
        row-id="id"
        height="500"
        :data="tableData"
        :checkbox-config=" {
        labelField: 'id',
        checkRowKeys: ids,
      }"
        >
        <vxe-table-column type="checkbox" width="100"></vxe-table-column>
        
        <vxe-table-column field="id" title="Id"></vxe-table-column>
        <vxe-table-column field="name" title="Name"></vxe-table-column>
        <vxe-table-column field="sex" title="Sex"></vxe-table-column>
        <vxe-table-column field="date" title="Date"></vxe-table-column>
        <vxe-table-column field="address" title="Address"></vxe-table-column>
      </vxe-table>
    </div>
  </template>
</div>

@import url("//unpkg.com/vxe-table/lib/index.css");