原理：在灵动标签循环内用SQL读取副表内容。比如调用副本图片集。

[e:loop={'photo',1,18,0,'','newstime DESC'}]
<a href="<?=$bqsr['titleurl']?>" target="_blank"><?=$bqr['title']?></a> <br>
<?php
$fr=$empire->fetch1("select morepic from {$dbtbpre}ecms_photo_data_{$bqr[stb]} where id='$bqr[id]'");
?>
副表内容字段：<?=$fr[morepic]?>
[/e:loop]