我不知道到目前为止你尝试了什么，但下面你有一个快速的答案，可以根据ID列出一个类别中的帖子。

<?php 
$args = array(
    \'posts_per_page\'   => -1, // Will show all posts from the category
    \'cat\'              => 149, // ID of the category
    \'orderby\'          => \'post_date\',
    \'order\'            => \'DESC\',
    \'post_type\'        => \'post\',
    \'post_status\'      => array(\'publish\')
); 

$posts_list = get_posts( $args );
foreach ( $posts_list as $post ) :
  setup_postdata( $post ); ?> 
    <article>
        <li>
        <?php echo get_the_date(); ?>
        <?php echo get_the_title(); ?>   
        <?php echo get_the_excerpt(); ?>
        Category: <?php echo get_the_term_list( $post->ID, \'category\', \'\', \' \' ); ?>
        </li>
    </article>
<?php
endforeach; 
wp_reset_postdata();
?>

使用以下代码。我希望它能起作用。

<?php 

$terms = wp_get_post_terms( $post->ID, array(\'Your category name\') );
$term_slugs = wp_list_pluck( $terms, \'slug\' );     
$args = array(
        \'post_type\' => array( \'your post  name\' ), //
            \'tax_query\' => array(
                array(
                \'taxonomy\' => \'category name\',
                \'field\' => \'slug\',
                \'terms\' => $term_slugs
                )
    );


    $my_query = null;
    $my_query = new WP_Query($args);