Qt file read

by tangke 2009-07-27
今天写一个kpowersave上面的读proc里面的文件，竟然不知道Qt3怎么写了，所以把这段代码贴出来比较好，以后就怕又忘了。
qt3:
QFile file( "/proc/sys/kernel/osrelease" );
if ( file.open( IO_ReadOnly ) )
{
    QTextStream stream( &file );
    QString line = stream.readLine();
    line = tr("Kernel Version") + "\t" + line;
    new QLabel(line, p);
    file.close();
}

qt4:
QFile file( "/proc/sys/kernel/osrelease" );
if ( file.open( QIODevice::ReadOnly ) )
{
    Q3TextStream stream( &file );
    QString line = stream.readLine();
    line = tr("Kernel Version") + "\t" + line;
    new QLabel(line, p);
    file.close();
}
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