vxetable的高亮行不显示的问题及解决

<template>
  <div>
    <!-- 把下面这个表格的 :key="Math.random()" 删除就可以了-->
    <vxe-table :key="Math.random()"
               border
               ref="xTable"
               height="300"
               :row-config="{isCurrent: true, isHover: true}"
               :data="tableData"
               @current-change="currentChangeEvent">
      <vxe-column field="name"
                  title="Name"></vxe-column>
      <vxe-column field="sex"
                  title="Sex"></vxe-column>
      <vxe-column field="age"
                  title="Age"></vxe-column>
      <vxe-column field="address"
                  title="Address"
                  show-overflow></vxe-column>
    </vxe-table>
    <!-- 下面这个表格的 :key="Math.random()" 不用删 -->
    <vxe-table :key="Math.random()"
               border
               ref="xTable"
               height="300"
               :row-config="{isCurrent: true, isHover: true}"
               :data="tableData1">
      <vxe-column field="name"
                  title="Name"></vxe-column>
      <vxe-column field="sex"
                  title="Sex"></vxe-column>
      <vxe-column field="age"
                  title="Age"></vxe-column>
      <vxe-column field="address"
                  title="Address"
                  show-overflow></vxe-column>
    </vxe-table>
  </div>
</template>

<script>
export default {
  data () {
    return {
      tableData: [
        { id: 10001, name: 'Test1', role: 'Develop', sex: 'Man', age: 28, address: 'test abc' },
        { id: 10002, name: 'Test2', role: 'Test', sex: 'Women', age: 22, address: 'Guangzhou' },
        { id: 10003, name: 'Test3', role: 'PM', sex: 'Man', age: 32, address: 'Shanghai' },
        { id: 10004, name: 'Test4', role: 'Designer', sex: 'Women', age: 24, address: 'Shanghai' }
      ],
      tableData1: []
    }
  },
  methods: {
    currentChangeEvent ({ row }) {
      console.log(row)
      //   模拟请求动态获取 表格2 的表格数据
      setTimeout(() => {
        this.tableData1 = [
          { id: 10005, name: 'Test5', role: 'Develop', sex: 'Man', age: 28, address: 'test abc' },
          { id: 10006, name: 'Test6', role: 'Test', sex: 'Women', age: 22, address: 'Guangzhou' },
          { id: 10007, name: 'Test7', role: 'PM', sex: 'Man', age: 32, address: 'Shanghai' },
          { id: 10008, name: 'Test8', role: 'Designer', sex: 'Women', age: 24, address: 'Shanghai' }
        ]
      }, 100)
    }
  }
}
</script>

<style>
</style>