我有以价格开头的帖子标题，例如：199900美元-123街。我正在使用下面的代码，我无法通过标题升序来正常工作。请提供任何建议。

<?php
$paged = (get_query_var(\'paged\')) ? get_query_var(\'paged\') : 1;
$args = array(
 \'cat\' =>21,
 \'posts_per_page\' => 999999,
 \'paged\' => $paged,
 \'orderby\' => \'title\',
 \'order\' => \'ASC\',
 );
$the_query = new WP_Query($args);
?>
<div id="listings">

<?php if ($the_query->have_posts()) : ?>

<?php while ($the_query->have_posts()): $the_query->the_post(); ?>
        <div <?php post_class() ?> id="post-<?php the_ID(); ?>">
            <div class="title1 active_listing">
                <?php
                if (in_category(\'6\')) {
                the_title();
                } else {
                ?>

                <a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a>
                <?php
                }
                ?>
            </div>

                <div class="alignleft thumb"><?php the_post_thumbnail(\'thumbnail\'); ?>
<br />
</div>
        <div class="content"><?php the_excerpt(); ?> </div>

                <?php
                if (in_category(\'6\')) {
                ?>
<br />
                <?php
                } else {
                ?>
 <a href="<?php the_permalink() ?>" rel="bookmark"> View Details</a>
 <br />
                <?php
                }
                ?>

        </div>

    <?php endwhile; wp_reset_postdata();?>

<?php else : ?>

    <h2 class="center">Not Found</h2>
    <p class="center">Sorry, but you are looking for something that isn\'t here.</p>
    <?php get_search_form(); ?>

<?php endif; ?>

</div>