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错误如下Fatal error: Uncaught exception 'Exception' with message 'Connect failed: Access denied for user 'huahua'@'xukai-5aa316861' (using password: YES)' in D:\freehost\huazhi2hua\web\include\library\DB.class.php:40 Stack trace: #0 D:\freehost\huazhi2hua\web\include\library\DB.class.php(24): DB->__construct() #1 D:\freehost\huazhi2hua\web\include\library\DB.class.php(87): DB::Instance() #2 D:\freehost\huazhi2hua\web\include\library\DB.class.php(164): DB::Query('SELECT * FROM `...') #3 D:\freehost\huazhi2hua\web\include\library\DB.class.php(127): DB::GetQueryResult('SELECT * FROM `...', false) #4 D:\freehost\huazhi2hua\web\include\library\Table.class.php(166): DB::GetDbRowById('system', Array) #5 D:\freehost\huazhi2hua\web\include\library\Table.class.php(192): Table::_Fetch('system', Array) #6 D:\freehost\huazhi2hua\web\include\classes\ZSystem.class.php(7): Table::Fetch('system', 1) #7 D:\freehost\huazhi2hua\web\app.php(13): ZSystem::GetINI() #8 D:\freehost\huazhi2hua\web\index.php(2): require_once('D:\freehost\hua...') #9 {main} in D:\freehost\huazhi2hua\web\include\library\DB.class.php on line 40