thinkphp5 volist 嵌套 实现多维数组的table

<tbody>
            {volist name="banner" id="vo" key="i"}
                <tr>
                    <td lay-data="{field:"id", width:100}">{$vo.id}</td>
                    <td lay-data="{field:"name", width:100}">{$vo.name}</td>
                    <td lay-data="{field:"description", width:100}">{$vo.description}</td>
                    <td lay-data="{field:"apps_id", width:100}">{$vo.apps_id}</td>
                    {if condition="$vo.items == null"}
                    <td lay-data="{field:"type", width:100}"></td>
                    <td lay-data="{field:"from", width:100}"></td>
                    <td lay-data="{field:"url", width:100}"></td>
                    {else /}
                       {volist name="vo.items" id="list" key="j"}
                            <td lay-data="{field:"type", width:100}">{$list.type}</td>
                            <td lay-data="{field:"from", width:100}">{$list.img.from}</td>
                            <td lay-data="{field:"url", width:180}">{$list.img.url}</td>
                            {if condition="$j lt count($vo["items"])"}
                            </tr><tr>
                            <td lay-data="{field:"id", width:100}">{$vo.id}</td>
                            <td lay-data="{field:"name", width:100}">{$vo.name}</td>
                            <td lay-data="{field:"description", width:100}">{$vo.description}</td>
                            <td lay-data="{field:"apps_id", width:100}">{$vo.apps_id}</td>
                            {/if}
                       {/volist}
                    {/if}
                </tr>
            {/volist}
        </tbody>