出错信息：connect database error :����Ŀ�����������ܾ����޷����ӡ�

出错文件：D:\wwwroot\whqlm\wwwroot\mvc\base\db\MysqlDriver.php

错误行：196

Trace信息：
#0 D:\wwwroot\whqlm\wwwroot\mvc\base\db\MysqlDriver.php(214) mvc\base\db\MysqlDriver->_connect()
#1 D:\wwwroot\whqlm\wwwroot\mvc\base\db\MysqlDriver.php(35) mvc\base\db\MysqlDriver->_getReadLink()
#2 D:\wwwroot\whqlm\wwwroot\mvc\base\db\MysqlDriver.php(31) mvc\base\db\MysqlDriver->query()
#3 D:\wwwroot\whqlm\wwwroot\mvc\base\Model.php(87) mvc\base\db\MysqlDriver->select()
#4 D:\wwwroot\whqlm\wwwroot\app\admin\model\ConfigModel.class.php(25) mvc\base\Model->select()
#5 D:\wwwroot\whqlm\wwwroot\app\base\controller\BaseController.php(66) app\admin\model\ConfigModel->getInfo()
#6 D:\wwwroot\whqlm\wwwroot\app\base\controller\BaseController.php(57) app\base\controller\BaseController->setCont()
#7 D:\wwwroot\whqlm\wwwroot\app\home\controller\SiteController.class.php(22) app\base\controller\BaseController->__construct()
#8 D:\wwwroot\whqlm\wwwroot\mvc\base\App.php(54) app\home\controller\SiteController->__construct()
#9 D:\wwwroot\whqlm\wwwroot\mvc\index.php(108) mvc\base\App::run()
#10 D:\wwwroot\whqlm\wwwroot\index.php(16) require()