Wordpress后端中的permalink配置仅适用于标准帖子和页面。对于CPT，默认URL结构为http://example.com/cpt-identifier/post-slug. 如果您想要为您的CPT提供不同的URL结构，那么您必须定义并注册自己的重写规则。

例如：

add_action( \'init\', \'register_posttype\' );
function register_posttype() {
register_post_type( \'my_cpt\', //this will be in the URL as CPT identifier
    array(
        \'labels\' => array(
            \'name\' => __( \'My Custom Post Types\' ),
            \'singular_name\' => __( \'Custom Post Type\' )
        ),
        \'public\' => true,
        \'has_archive\' => true,
        \'rewrite\' => array(\'slug\' => \'products\'), //This will override the CPT identifier
    )
);
}

add_action( \'init\', \'register_posttype\' );
function register_posttype() {
register_post_type( \'my_cpt\', //this will be in the URL as CPT identifier
    array(
        \'labels\' => array(
            \'name\' => __( \'My Custom Post Types\' ),
            \'singular_name\' => __( \'Custom Post Type\' )
        ),
        \'public\' => true,
        \'has_archive\' => true,
        \'rewrite\' => array(\'slug\' => \'%year%/my_cpt\'), //This will override the CPT identifier
    )
);
}

add_filter(\'post_type_link\', \'modify_permalink\');
function modify_permalink($url, $post = null) {
    // limit to certain post type. remove if not needed
    if (get_post_type($post) != \'my_cpt\') {
        return $url;
    } elseif(!is_object($post)) {
        global $post;
    }
    $url = str_replace("%year%",  get_the_date(\'Y\'), $url);

    return $url;
}

add_action(\'init\',\'my_add_rewrite_rules\');
function my_add_rewrite_rules() {
    add_rewrite_rule(\'([0-9])/my_cpt/(.+)/?$\', \'index.php?post_type=my_cpt&post=$matches[1]\', \'top\' );
}