qt链接sqlserver数据库

  
	QSqlDatabase	db = QSqlDatabase::addDatabase("QODBC");

      	 db.setDatabaseName(QString("DRIVER={SQL SERVER};"

                                  "SERVER=%1;"

                                  "DATABASE=%2;"

                                  "UID=%3;"

                                  "PWD=%4;").arg("DESKTOP-E2VNUP9")

                          .arg("CF")

                          .arg("sa")

                          .arg("sa123"));

       if (!db.open())

       {

           qDebug()<<"can't connect to database!"<<endl;

           qDebug()<<db<<endl;

       }

       else

       {

           qDebug()<<"Connect to Database Success!";

       }