Warning: mysqli_connect(): (HY000/1045): Access denied for user 'chenzhua'@'localhost' (using password: YES) in C:\PHPnow\htdocs\chenzhua\conn\conn.php on line 5 Warning: mysqli_query() expects parameter 1 to be mysqli, boolean given in C:\PHPnow\htdocs\chenzhua\conn\conn.php on line 6 数据库连接失败: Access denied for user 'chenzhua'@'localhost' (using password: YES)