您应该将代码放在循环中并添加到args 大堆\'post_id\' => get_the_ID() 所以应该是这样的：

while(have_posts()){
   the_post();
   //your post loop output
   $args = array(
    \'status\' => \'approved\',
    \'number\' => \'5\',
    \'post_id\' => get_the_ID()
    );
    $comments = get_comments($args);
    foreach($comments as $comment) :
        echo( $comment->get_avatar . $comment->comment_author . \'<br />\' . $comment->comment_content);
    endforeach;
}