1、这里一定要给columns和data-source设置key即可。

<div>
    <a-table
        :row-selection="rowSelection"
        :dataSource="tableList"
        :columns="columns"
        :scroll="{ x: '100%' }"
        :pagination="false"
        :loading="loading"
    >
</a-table>

//表头
  const columns = [
    {
      title: '岗位名称',
      dataIndex: 'gangweimingchen',
      key: 'gangweimingchen',
      align: 'center',
    },
    {
      title: '所属层级',
      dataIndex: 'suoshucengci',
      key: 'suoshucengci',
      align: 'center',
    }
  ];
  //表格数据
  const tableList = ref([
    {
      key: 1,
      gangweimingchen: '项目总监',
      suoshucengci: '八大模块',
    },
  ]);
  const rowSelection = ref({
    checkStrictly: false,
  });

2、效果图