为自定义帖子类型创建自定义分类法，并为每个类型设置slug以包含findby部分，如下例所示。

     \'has_archive\'           => true,
     \'rewrite\'               => array( \'slug\' => \'findby/charity\', \'with_front\' => false ),
     \'query_var\'             => true,
     \'public\'                => true,

     \'has_archive\'           => true,
     \'rewrite\'               => array( \'slug\' => \'postname\', \'with_front\' => false ),
     \'query_var\'             => true,
     \'public\'                => true,

     // include all relevant taxonomies, such as category, post_tag and your custom ones
     \'taxonomies\'            => array(\'category\' , \'post_tag\', \'charity\')