qt 读写ini linux

#include <QCoreApplication>
#include <QSettings>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QSettings settings("config.ini", QSettings::IniFormat);
    settings.beginGroup("Database");
    settings.setValue("host", "localhost");
    settings.setValue("port", 3306);
    settings.setValue("name", "mydatabase");
    settings.endGroup();

    return a.exec();
}

#include <QCoreApplication>
#include <QSettings>
#include <QDebug>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QSettings settings("config.ini", QSettings::IniFormat);
    settings.beginGroup("Database");
    QString host = settings.value("host").toString();
    int port = settings.value("port").toInt();
    QString name = settings.value("name").toString();
    settings.endGroup();

    qDebug() << "Host:" << host;
    qDebug() << "Port:" << port;
    qDebug() << "Name:" << name;

    return a.exec();
}