phpcms v9 实现3条循环tr，其它标签亦可参考

{if $data} 
{php $len=count($data) } 
    <tr> 
    {loop $data $r} 
    <li>...</li> 
    {if $n%3==0&&$n!=$len}</tr><tr>{/if} 
    {/loop} 
    </tr> 
{/if}

举一反三：输出2条循环tr

{if $data} 
{php $len=count($data) } 
    <tr> 
    {loop $data $r} 
    <li>...</li> 
    {if $n%2==0&&$n!=$len}</tr><tr>{/if} 
    {/loop} 
    </tr> 
{/if}