根据您的自定义帖子类型，以下代码将适用于

在侧栏中添加以下代码。php显示自定义帖子类型类别

<?php
 //list terms in a given taxonomy using wp_list_categories  (also useful as a widget)
  $orderby = \'name\';
  $show_count = 0; // 1 for yes, 0 for no
   $pad_counts = 0; // 1 for yes, 0 for no
   $hierarchical = 1; // 1 for yes, 0 for no
  $taxonomy = \'genre\';
  $title = \'\';

  $args = array(
    \'orderby\' => $orderby,
    \'show_count\' => $show_count,
    \'pad_counts\' => $pad_counts,
    \'hierarchical\' => $hierarchical,
    \'taxonomy\' => $taxonomy,
     \'title_li\' => $title
     );
 ?>
  <ul>
 <?php
   wp_list_categories($args);
 ?>
 </ul>