我不确定在Wordpress中的单个查询中是否可以做到这一点。您可以将其分为两部分，如下所示：

<ul>
<?php
global $post;

// Get posts by selected post ids
$args = array(
    \'posts_per_page\' => -1,
    \'post__in\'       => [12345,12543],
    \'orderby\'        => \'post__in\'
);
$myposts = get_posts($args);
foreach ($myposts as $post) : setup_postdata($post); ?>
    <li>
    <?php echo get_the_ID(); ?>
    </li>
<?php endforeach;
wp_reset_postdata();

// Get latest posts excluding selected post ids
$args = array(
    \'posts_per_page\' => -1,
    \'exclude\'        => [12345,12543]
);

$myposts = get_posts($args);
foreach ($myposts as $post) : setup_postdata($post); ?>
    <li>
    <?php echo get_the_ID(); ?>
    </li>
<?php endforeach;
wp_reset_postdata();
?>
</ul>