根据mysql的类改的，
<?
$host="localhost";
$database="test";
$database_usn="";
$database_pwd="";
##########mysqlclass.php###################
class Database{
var $db_host;
var $db;
var $db_usn;
var $db_pwd;
function Database()
{ global $database,$host,$database_usn,$database_pwd;
$this->db_host=$host;
$this->db=$database;
$this->db_usn=$database_usn;
$this->db_pwd=$database_pwd;
}
function db_connect()/* db connect */
{
$link=@mssql_pconnect($this->db_host,$this->db_usn,$this->db_pwd) or
die("对不起,服务器连接错误!请稍候再来,或与管理员联系");
$link=@mssql_select_db($this->db,$link) or
die("对不起,数据库连接错误!请稍候再来,或与管理员联系");
return $link;
}
function query($query)/* sql query */
{
$res=mssql_query($this->$query);
return $res;
}
function gia($res)/* put the query result into array */
{
$data=mssql_fetch_array($res);
return $data;
}
function getnum($res) /* gut num of the result */
{
$data=@mssql_num_rows($res);
return $data;
}
function db_close() /* close database connect */
{
mssql_close();
}
}
?>

连接数据没报错，但就是query时什么也不显示