Fatal error: Uncaught mysqli_sql_exception: 由于目标计算机积极拒绝，无法连接。 in C:\Apache\htdocs\yaoyue\config.php:9 Stack trace: #0 C:\Apache\htdocs\yaoyue\config.php(9): mysqli->__construct('localhost', 'root', 'root', 'linliyibang') #1 C:\Apache\htdocs\yaoyue\yaoyue.php(3): require_once('C:\\Apache\\htdoc...') #2 {main} thrown in C:\Apache\htdocs\yaoyue\config.php on line 9