通过传递“选项常规”，可以在“设置”菜单中添加自定义帖子类型。php“value to”“show\\u in\\u menu”参数，如下所示

Example : \'show_in_menu\' => \'options-general.php\'

function codex_custom_init() {
  $labels = array(
\'name\' => \'Books\',
\'singular_name\' => \'Book\',
\'add_new\' => \'Add New\',
\'add_new_item\' => \'Add New Book\',
\'edit_item\' => \'Edit Book\',
\'new_item\' => \'New Book\',
\'all_items\' => \'All Books\',
\'view_item\' => \'View Book\',
\'search_items\' => \'Search Books\',
\'not_found\' =>  \'No books found\',
\'not_found_in_trash\' => \'No books found in Trash\', 
\'parent_item_colon\' => \'\',
\'menu_name\' => \'Books\'
  );

  $args = array(
\'labels\' => $labels,
\'public\' => true,
\'publicly_queryable\' => true,
\'show_ui\' => true, 
\'show_in_menu\' => \'options-general.php\',
\'query_var\' => true,
\'rewrite\' => array( \'slug\' => \'book\' ),
\'capability_type\' => \'post\',
\'has_archive\' => true, 
\'hierarchical\' => false,
\'menu_position\' => null,
\'supports\' => array( \'title\', \'editor\', \'author\', \'thumbnail\', \'excerpt\', \'comments\' )
  ); 

  register_post_type( \'book\', $args );
}
add_action( \'init\', \'codex_custom_init\' );