代码

functions.php文件下添加如下代码

//为 WordPress 页面添加标签和分类
class PTCFP{
  function __construct(){
    add_action( 'init', array( $this, 'taxonomies_for_pages' ) );
    /**
     * 确保这些查询修改不会作用于管理后台，防止文章和页面混杂
     */
    if ( ! is_admin() ) {
      add_action( 'pre_get_posts', array( $this, 'category_archives' ) );
      add_action( 'pre_get_posts', array( $this, 'tags_archives' ) );
    } // ! is_admin
  } // __construct
  /**
   * 为"页面"添加"标签"和"分类"
   *
   * @uses register_taxonomy_for_object_type
   */
  function taxonomies_for_pages() {
      register_taxonomy_for_object_type( 'post_tag', 'page' );
      register_taxonomy_for_object_type( 'category', 'page' );
  } // taxonomies_for_pages
  /**
   * 在标签存档中包含"页面"
   */
  function tags_archives( $wp_query ) {
    if ( $wp_query->get( 'tag' ) )
      $wp_query->set( 'post_type', 'any' );
  } // tags_archives
  /**
   * 在分类存档中包含"页面"
   */
  function category_archives( $wp_query ) {
    if ( $wp_query->get( 'category_name' ) || $wp_query->get( 'cat' ) )
      $wp_query->set( 'post_type', 'any' );
  } // category_archives
} // PTCFP
$ptcfp = new PTCFP();

参考

• https://boke112.com/bkwd/4767.html