结合advanced custom fields，custom post type-ui这两款插件，wordpress可以扩展出很强大的功能。下面这段代码新建了一个文章类型，查询出这个文章类型下推荐分类中的推荐文章。

<?php
    $args=array(
	'orderby' => 'name',
	'order' => 'ASC',
	'number' => '200',
	'post_type' => 'pmacnews',
	'taxonomy' => 'yourtaxonomy name',
	'hide_empty' => '0',
	'parent' => 0
    );
    $categories=get_categories($args);
    foreach($categories as $category) :
?>
    <?php $recommend = get_field('recommend', 'pmacnews_categories_'.$category->cat_ID); if ($recommend == 'Yes') :?>
    <?php echo $category->name ?>
    <?php
        global $wp_query;
        $search_args = array(
	    'post_type' => 'pmacnews',
	    'posts_per_page' => '6',
	    'tax_query' => array(
	    'relation' => 'AND',
	        array(
	     	    'taxonomy' => 'yourtaxonomy name',
		    'field' => 'slug',
		    'terms' => array(
		     $category->slug,
     	            )
	        )
	    ) ,
	    'meta_query' => array(
	        array(
		    'key' => 'recommend',
		    'value' => 'Yes',
		    'compare' => 'in'
	        )
	    )
        );
        query_posts($search_args);
    ?>
        <?php while ( have_posts() ) : the_post(); ?>
	    <?php the_title(); ?>
        <?php endwhile ?>
    <?php wp_reset_query(); ?>

    <?php endif; ?>
<?php endforeach ?>