效果图：

实现方法：

    <a-table
      :columns="columns"
      :data-source="data" 数据源
      rowKey="id"
      :rowClassName="rowClassName"
      :scroll="{x:2510}"
      bordered>
    </a-table>

data:

	columns:[
	 {
	    title: '左边盖样式',
	    dataIndex: '',
	    key: '',
	    ellipsis: true,
	    width: '150px',
	    customCell: (record, rowIndex) => {
	      return {
	        style: {
	          'background-color': '#f9f9f9'
	        }
	      }
	    }
	  },
	  {
	    title: '左边盖标签名称',
	    dataIndex: '',
	    key: '',
	    ellipsis: true,
	    width: '150px',
	    customCell: (record, rowIndex) => {
	      return {
	        style: {
	          'background-color': '#f9f9f9'
	        }
	      }
	    }
	  }
	]