2. WordPress最新评论代码：

如果不想使用插件显示最新评论，可以用下面的代码，将它复制到你在用的主题下的sidebar.php文件的合适位置，显示评论内容是评论摘要，SUBSTRING(comment_content,1,24)，24表示摘要字数长短，可以自己设置：

<li><h3>最新评论</h3>
<?php
global $wpdb;
$sql = "SELECT DISTINCT ID, post_title, post_password, comment_ID,
comment_post_ID, comment_author, comment_date_gmt, comment_approved,
comment_type,comment_author_url,
SUBSTRING(comment_content,1,24) AS com_excerpt
FROM $wpdb->comments
LEFT OUTER JOIN $wpdb->posts ON ($wpdb->comments.comment_post_ID =
$wpdb->posts.ID)
WHERE comment_approved = '1' AND comment_type = '' AND
post_password = ''
ORDER BY comment_date_gmt DESC
LIMIT 10";
$comments = $wpdb->get_results($sql);
$output = $pre_HTML;
$output .= "<ul>";
foreach ($comments as $comment) {
$output .= "<li>". "<a href=\"" . get_permalink($comment->ID) .
"#comment-" . $comment->comment_ID . "\" title=\"【".strip_tags($comment->comment_author). "】 评论于\n《" .$comment->post_title . "》\">" . strip_tags($comment->com_excerpt)
.'</a></li>';
}
$output .= "</ul>";
$output .= $post_HTML;
echo $output;
?>
</li>