来自：

 

public function downloads($name){		$name_tmp = explode("_",$name);		$type = $name_tmp[0];		$file_time = explode(".",$name_tmp[3]);		$file_time = $file_time[0];		$file_date = date("Y/md",$file_time);		$file_dir = SITE_PATH."/data/uploads/$type/$file_date/";					if (!file_exists($file_dir.$name)){			header("Content-type: text/html; charset=utf-8");			echo "File not found!";			exit; 		} else {			$file = fopen($file_dir.$name,"r"); 			Header("Content-type: application/octet-stream");			Header("Accept-Ranges: bytes");			Header("Accept-Length: ".filesize($file_dir . $name));			Header("Content-Disposition: attachment; filename=".$name);			echo fread($file, filesize($file_dir.$name));			fclose($file);		}	}