You could use the Posts By Tag plugin.

您可以在主题中使用此片段。

//-------------------------------------------------------------
// List Posts by Tag
//-------------------------------------------------------------

// Grab 5 posts by default

function list_posts_by_tag( $tag, $show=5 ) {

     global $post;

     $posts = query_posts(\'tag=\' . $tag . \'&showposts=\' . $show );

     ?>

     <ul class="tagged-list">

          <?php foreach ($posts as $post ) : setup_postdata($post); ?>

               <li class="tagged-item"><a href="<?php the_permalink(); ?>" rel="bookmark"><?php the_title(); ?></a></li>

          <?php endforeach;

          //Reset Query
          wp_reset_query();

          ?>

     </ul>

     <?php }

您需要将该代码添加到函数中。php，然后在主题中添加对函数的调用：

list_posts_by_tag( "cats", 5 );