PDO Connection faild.(可能空间不支持pdo，详细错误信息：)exception 'PDOException' with message 'SQLSTATE[HY000] [1130] Host '182.92.194.21' is not allowed to connect to this MySQL server' in /usr/home/bxu2359170113/htdocs/app/db.class.php:26
Stack trace:
#0 /usr/home/bxu2359170113/htdocs/app/db.class.php(26): PDO->__construct('mysql:host=bdm2...', 'bdm255853566', 'Root@#123')
#1 /usr/home/bxu2359170113/htdocs/xhs.php(13): Db->__construct()
#2 /usr/home/bxu2359170113/htdocs/index.php(82): require('/usr/home/bxu23...')
#3 {main}