如果它是您的主循环，您可以将其添加到function.php:

function custom_pre_get_posts($query) {
    if($query->is_main_query() && /* is sticky conditional tag(sorry I need to check what is that) */) {
        $query->set(\'posts_per_page\', "1");
    }
}
add_action(\'pre_get_posts\', \'custom_pre_get_posts\');

也可以在主题文件中创建新的WP\\U查询实例：

<?php 
$onePost = new WP_Query(array(
    \'post_type\' => // your post type,
    \'posts_per_page\' => 1,
    \'post__in\' => get_option(\'sticky_posts\')
));
if($onePost->have_posts()) :
    while(($onePost->have_posts()) :
        $onePost->the_post(); 
?>
// your post HTML as normal
<?php 
    endwhile;
    wp_reset_query();
    endif; 
?>

请注意，如果使用WP\\u查询，则需要设置自定义帖子所需的所有参数。您可以在WP\\U查询法典中阅读此内容

给你。。

function latest_sticky() { 

    /* Get all sticky posts */
    $sticky = get_option( \'sticky_posts\' );

    /* Sort the stickies with the newest ones at the top */
    rsort( $sticky );

    /* Get the latest */
    $sticky = array_slice( $sticky, 0, 1 ); //Change the 1 to get more than one.

    /* Query sticky posts */
    $the_query = new WP_Query( array( \'post__in\' => $sticky, \'ignore_sticky_posts\' => 1 ) );
    // The Loop
    if ( $the_query->have_posts() ) {
        $return .= \'<ul>\';
        while ( $the_query->have_posts() ) {
            $the_query->the_post();
            $return .= \'<li><a href="\' .get_permalink(). \'" title="\'  . get_the_title() . \'">\' . get_the_title() . \'</a><br />\' . get_the_excerpt(). \'</li>\';

        }
        $return .= \'</ul>\';

    } else {
        // no posts found
    }
    /* Restore original Post Data */
    wp_reset_postdata();

    return $return; 

} 

只要做一个<?php echo latest_sticky();?> 模板的任何位置。