设置服务的自定义发布类型和服务类型的自定义分类法。将显示服务发布类型，但页面上没有添加服务类型分类的选项。这是我的代码：

function create_posttypes() {
register_taxonomy(  
    \'service-type\',  //The name of the taxonomy. Name should be in slug form (must not contain capital letters or spaces). 
    \'services\',        //post type name
    array(  
        \'hierarchical\' => true,  
        \'label\' => \'Service Types\',  //Display name
        \'query_var\' => true,
        \'rewrite\' => array(
            \'slug\' => \'service\', // This controls the base slug that will display before each term
            \'with_front\' => false // Don\'t display the category base before 
        )
    )  
); 
//Services Post Type and Categories
$labels = array(
            \'name\' => __( \'Services\' ),
                    \'singular_name\' => __( \'Service\' ),
            \'all_items\' => __( \'All Services\' ),
            \'view_item\' => __( \'View Service\' ),
            \'add_new_item\' => __( \'Add New Service\' ),
            \'edit_item\' => __( \'Edit Service\' ),
            \'update_item\' => __( \'Update Service\' ),
            \'search_items\' => __( \'Search Services\' ),
            \'not_found\' => __( \'Not Found\' ),
            \'not_found_in_trash\' => __( \'Not Found in Trash\' ),
        );
$args = array(
            \'label\' => \'Services\',
            \'description\' => \'Directory of Services\',
            \'labels\' => $labels,
            \'public\' => true,
            \'query_var\' => true,
            \'has_archive\' => true,
            \'rewrite\' => array(\'slug\'=> \'services\', \'with_front\' => false),
            \'hierarchical\' => false,
            \'show_ui\' => true,
            \'show_in_menu\' => true,
            \'show_in_rest\' => true,
            \'show_in_nav_menus\' => true,
            \'show_in_admin_bar\' => true,
            \'menu_position\' => 5,
            \'can_export\' => true,
            \'exclude_from_search\' => false,
            \'publicly_queryable\' => true,
            \'capability_type\' => \'post\',
            \'taxonomies\' => array( \'post_tag\',\'service-type\'),
            \'supports\' => array(\'title\',\'thumbnail\', \'revisions\', \'excerpt\', \'editor\')
        );
register_post_type( \'services\', $args );
}

add_action( \'init\', \'create_posttypes\', 0 );