<{foreach from=$data.cate item=item}> <{if $item.parent_id == 0}> selected="selected" <{/if}> ><{$item.cat_name}> <{foreach from=$data.cate item=item2}> <{if $item2.parent_id == $item.cat_id}> selected="selected" <{/if}> >      <{$item2.cat_name}> <{/if}> <{/foreach}> <{/if}> <{/foreach}>