我需要你的帮助。

我想从我的模板分类广告中找出最后一个（数字）。下面是代码：

<?php 
$the_query = new WP_Query( array(
            \'showposts\' => 10,
            \'post_type\' => \'ad\',
            \'tax_query\' => array(
                                array(
                                \'taxonomy\' => \'ad_category\',
                                \'field\' => \'id\',
                                \'terms\' => array(\'8\')
                                )
                            )
    ));
if($the_query->have_posts()):
?>
<div class="feat-ad column col12"><!-- featured ad -->
     <h3 class="widget-title">Category</h3>
    <ul id="first-carousel" class="first-and-second-carousel">
    <?php while ( $the_query->have_posts() ) : $the_query->the_post(); ?>
        <li>
            <?php colabs_image(\'width=150&height=150&play=true\');?>
            <a href="<?php the_permalink();?>"><?php the_title();?></a>
        </li>
    <?php endwhile; ?>   
    </ul>
</div><!-- end featured ad -->
<?php endif;?>

我尝试了showpost，但在一个广告中没有出现任何内容。。。这甚至不是最后一次宣布。

$the_query = new WP_Query( array(
            \'post_type\' => \'ad\',
            \'posts_per_page\' => 10,
            \'orderby\' => \'date\',
            \'order\' => \'DESC\',
            \'tax_query\' => array(
                                array(
                                \'taxonomy\' => \'ad_category\',
                                \'field\' => \'id\',
                                \'terms\' => array(\'8\')
                                )
                            )
    ));