以下两个代码片断，那个快些？

URL:http://127.0.0.1/url.php?index=show


片断一：
<?php
$index = $_GET[index];
$indexfile = "include/".$index.".php";;
if(file_exists($indexfile)){
include $indexfile;
}else{
include "include/default.php";
}
?>

片断二：

<?php
$index = $_GET[index];
switch($index) {
default:
include 'include/default.php';
break;

case 'login':
include "include/login.php";
break;

case 'register':
include "include/register.php";
break;
}
?>

[ 本帖最后由 seeee 于 2007-3-12 03:20 PM 编辑 ]