我创建了自定义帖子类型。mu插件文件夹中的php文件：

    <?php 

function custom_post_types(){
    register_post_type(\'event\', array(
        \'public\' => true,
        \'labels\' => array(
            \'name\' => \'Events\',
            \'edit_item\'=>\'Edit Event\',
            \'edit_posts\' => \'Add New Event\',
            \'all_items\' => \'All Events\'
        ),
        \'menu_icon\' => \'dashicons-calendar\'
    ));
  }
  
  add_action(\'init\', \'custom_post_types\');