QT＜28＞Qt在.ini配置文件中的读写-秒，读取.ini配置文件中的读写-秒，读取.ini配置文件中的读写-秒。

        QString path = "D:/lns/model.ini";
        QSettings *demo = new QSettings(path, QSettings::IniFormat);
        demo -> beginGroup("alarm");
        QStringList str = demo -> allKeys();
        QString key1 = str.at(0);
        QString value1 = demo -> value(key1).toString();
        examopen.worksheet = value1.toInt();
        QString key2 = str.at(1);
        QString value2 = demo -> value(key2).toString();
        examopen.SN_number = value2.toInt();
        demo -> endGroup();