Qt获取目录大小

 

#include <QDir>
#include <QFileInfoList>
#include <QDebug>

qint64 getDirectorySize(const QString &dirPath)
{
    qint64 size = 0;
    QDir dir(dirPath);
    QFileInfoList fileList = dir.entryInfoList(QDir::Files);

    foreach (QFileInfo fileInfo, fileList) {
        size += fileInfo.size();
    }

    QFileInfoList dirList = dir.entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot);

    foreach (QFileInfo dirInfo, dirList) {
        size += getDirectorySize(dirInfo.filePath());
    }

    return size;
}

int main()
{
    QString dirPath = "/path/to/your/directory";
    qint64 dirSize = getDirectorySize(dirPath);

    qDebug() << "Directory size:" << dirSize << "bytes";

    return 0;
}