1 
     getRealSize($this->getDirSize(dirname($_SERVER['SCRIPT_FILENAME']).'/Public/Editor/attached/image/'.$id)); 8         $message = '我是系统消息'; 9         $this->assign('neicun', $neicun);10         $this->assign('space', $space);11         $this->assign('sysmessage', $message);12         $this->display();13     }14     public function getDirSize($dir)15     {16         $handle = opendir($dir);17         while (false!==($FolderOrFile = readdir($handle)))18         {19             if($FolderOrFile != "." && $FolderOrFile != "..")20             {21                 if(is_dir("$dir/$FolderOrFile"))22                 {23                     $sizeResult += $this->getDirSize("$dir/$FolderOrFile");24                 }25                 else26                 {27                     $sizeResult += filesize("$dir/$FolderOrFile");28                 }29             }30         }31         closedir($handle);32         return $sizeResult;33     }34     35     // 单位自动转换函数36     function getRealSize($size)37     {38         $kb = 1024;         // Kilobyte39         $mb = 1024 * $kb;   // Megabyte40         $gb = 1024 * $mb;   // Gigabyte41         $tb = 1024 * $gb;   // Terabyte42     43         if($size < $kb)44         {45             return $size." B";46         }47         else if($size < $mb)48         {49             return round($size/$kb,2)." KB";50         }51         else if($size < $gb)52         {53             return round($size/$mb,2)." MB";54         }55         else if($size < $tb)56         {57             return round($size/$gb,2)." GB";58         }59         else60         {61             return round($size/$tb,2)." TB";62         }63         64     }