query_posts( array(\'orderby\' => \'comment_count\', \'order\'=>\'DESC\') )

This should do it.

$query = WP_Query;

foreach ($query[\'posts\'] as $post){
  $count = $post[\'comment_count\'];
  while (is_set($comment_sort[$count]){
   $count--;
  }    
  $comment_sort[$count]=$post[\'ID\'];
}

$sorted = ksort($comment_sort);
$sorted = array_reverse($sorted);

@Patrik-我有一个类似的问题：在WPMu安装中，在主博客上按帖子顺序显示最新的帖子。对我来说，最简单的解决方案是创建一个新表来保存新博客帖子的数据（新帖子通过插件插入），并在主页上查询该表。您也可以这样做，只需编辑SQL查询以基于大多数注释等返回。

最近发表评论的帖子：

$comments = get_comments( array(
    \'status\' => \'approve\',
    \'number\' => 10
) );

$include = array();

foreach ( $comments as $comment )
    $include[] = $comment->comment_post_ID;

query_posts( array(
    \'post__in\' => array_unique( $include )
) );

用于显示注释最多的帖子的代码段：

<?php 
$result = $wpdb->get_results("SELECT comment_count, ID, post_title FROM $wpdb->posts ORDER BY comment_count DESC LIMIT 0 , 10"); // NUMBER OF POSTS
foreach ($result as $topten) {
    $postid = $topten->ID;
    $title = $topten->post_title;
    $commentcount = $topten->comment_count;
    if ($commentcount != 0) {
?>

<li><a href="<?php echo get_permalink($postid); ?>"><?php echo $title ?></a></li>

<?php } } ?>