程序
#include <QCoreApplication>
#include <QDir>
#include <QStringList>
#include <QtDebug>
qint64 du(const QString path)
{
QDir dir(path);
qint64 size = 0;
foreach(QFileInfo fileInfo,dir.entryInfoList(QDir::Files))
{
size += fileInfo.size();
}
foreach(QString subDir,dir.entryList(QDir::Dirs|QDir::NoDotAndDotDot))
{
size += du(path+QDir::separator()+subDir);
}
char unit ='B';
qint64 curSize=size;
if(curSize>1024)
{
curSize/=1024;
unit ='K';
if(curSize>1024)
{
curSize/=1024;
unit ='M';
if(curSize>1024)
{
curSize/=1024;
unit ='G';
}
}
}
qDebug()<<curSize<<unit<<"\t"<<qPrintable(path)<<endl;
return size;
}
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
QStringList args = a.arguments();
QString path;
if(args.count()>1)
{
path = args[1];
}
else
{
path = QDir::currentPath();
}
qDebug()<<path<<endl;
du(path);
return a.exec();
}
效果展示