php preg_match_all は記事内の画像と一致します

$con = file_get_contents("http://bbs.it-home.org/news/jb-1.html");
$pattern="//";
preg_match_all( $pattern,$con,$match);
print_r($match);
?>

输出结果： 配列 ( [0] => 配列 ( [0] => [1] => [2] => ） [1] => 配列 ( [0] => http://bbs.it-home.org/usr/themes/dddefault/images/logo.png [1] => http://bbs.it-home.org/usr/uploads/2012/09/531656480.jpg [2] => http://bbs.it-home.org/usr/uploads/2012/09/2647136297.jpg ） )