Warning: mysqli_connect(): (HY000/1130): Host '120.24.76.138' is not allowed to connect to this MySQL server in /usr/home/syu2914320001/htdocs/conn/conn.php on line 5

Warning: mysqli_query() expects parameter 1 to be mysqli, boolean given in /usr/home/syu2914320001/htdocs/conn/conn.php on line 6
数据库连接失败: Host '120.24.76.138' is not allowed to connect to this MySQL server