您是使用主查询还是自定义WP\\U查询来显示帖子？
如果是：
$wp_query->found_posts; //Main query
$wp_query->current_post; // current post index
或
$my_wp_query->found_posts; //custom wp_query object - total found posts
$my_wp_query->current_post; // current post index
So, example
if( have_posts() ) : while( have_posts() ) : the_post();
?>
<p>The post <?php the_title(); ?> is <?php echo $wp_query->current_post; ?>th of <?php echo $wp_query->found_posts; ?> in category <?php echo \'your cat here\'; ?></p>
<?php endwhile; endif; ?>
