设置系统日期时间

//设置系统日期时间
    static void SetSystemDateTime(int year,int month,int day,int hour,int min,int sec)
    {
        QProcess p(0);

        p.start("cmd");
        p.waitForStarted();
        p.write(QString("date %1-%2-%3
").arg(year).arg(month).arg(day).toLatin1());
        p.closeWriteChannel();
        p.waitForFinished(1000);
        p.close();

        p.start("cmd");
        p.waitForStarted();
        p.write(QString("time %1:%2:%3.00
").arg(hour).arg(min).arg(sec).toLatin1());
        p.closeWriteChannel();
        p.waitForFinished(1000);
        p.close();
    }