你可以这样做

$args = array(
'author_name' => 'test', // Replace 'test' with the actual author name
'posts_per_page' => -1 // -1 means retrieve all posts
);

$query = new WP_Query($args);

 if ($query->have_posts()) {
  while ($query->have_posts()) {
     $query->the_post();
     $post_title = get_the_title();
     $post_description = get_the_excerpt();
     $post_featured_image = get_the_post_thumbnail_url();
    
     // Output the post information as needed
     echo '<h2>' . $post_title . '</h2>';
     echo '<p>' . $post_description . '</p>';
     echo '<img src="' . $post_featured_image . '" alt="' . $post_title . '">';
    }
 }
wp_reset_postdata();