I('path.')

    public function Ipath(){
        echo I('path.1'); // 输出2013
        echo '<br>';
        echo I('path.2'); // 输出06
        echo '<br>';
        echo I('path.3'); // 输出01
        echo '<br>';
        var_dump(I('path.'));
    }

http://localhost/thinkphp323/index.php/home/User/Ipath/2013/06/01/qqq/www/eee/rrr

Ipath
2013
06
array (size=9)
  0 => string 'User' (length=4)
  1 => string 'Ipath' (length=5)
  2 => string '2013' (length=4)
  3 => string '06' (length=2)
  4 => string '01' (length=2)
  5 => string 'qqq' (length=3)
  6 => string 'www' (length=3)
  7 => string 'eee' (length=3)
  8 => string 'rrr' (length=3)