QSqlDatabase db;

    db = db.addDatabase("QODBC");

    QString path("DRIVER={Microsoft Access Driver (*.mdb, *.accdb)};FIL={MS Access};DBQ=D:\\QT\\first\\build-Thread-Desktop_Qt_5_9_0_MSVC2013_64bit-Debug\\test.mdb");

    db.setDatabaseName(path);

    if (db.open())

    {

          // success!

          qDebug() << "Success";

    }

    else{

          qDebug() << "Errror!";

          qDebug() << db.lastError().text();

          QSqlError error = db.lastError().text();

          QMessageBox::information(NULL,"提示",error.text(),QMessageBox::Yes|QMessageBox::No,QMessageBox::Yes);

          db.close();

    }