请问URL怎么改成两级的好像不行

true,

    'DOMAIN_NAME' => 'http://127.0.0.1',

    'url_suffix'=>'.html',
    'url_explode'=>'/',

    'HY_URL'=>array(
        'action'=>array(
        
             'thread'=>'t',
             'forum'=>'f',
            
            'my'=>'u',
        ),
        'method'=>array(
            'thread'=>array(
                'del'=>'d'
            )
        )
    ),

@admin

老大帮忙看下        'thread'=>'a/t','  forum'=>'b/f',      改成这种不行吗