Fatal error: Uncaught ArgumentCountError: Too few arguments to function Auth::__construct(), 1 passed in /www/wwwroot/zytx.knxn.cn/index.php on line 3 and exactly 2 expected in /www/wwwroot/zytx.knxn.cn/classes/Auth.php:7 Stack trace: #0 /www/wwwroot/zytx.knxn.cn/index.php(3): Auth->__construct(Object(PDO)) #1 {main} thrown in /www/wwwroot/zytx.knxn.cn/classes/Auth.php on line 7