求救啊，谢谢各位！！！

在输入http://localhost/test.php时为何会出现：
Warning: mysql_connect() [function.mysql-connect]: Access denied for user 'root'@'localhost' (using password: YES) in D:\Program Files\Apache Software Foundation\Apache2.2\htdocs\test.php on line 6

失败!

Warning: mysql_close(): no MySQL-Link resource supplied in D:\Program Files\Apache Software Foundation\Apache2.2\htdocs\test.php on line 9

mysql用户名或密码不正确。