Qt 刪除目錄

刪除目標的目錄，若該目錄下有子目錄，一並刪除。

//判斷是否存在子目錄
bool judgeDir(QDir dir)
{
    dir.setFilter(QDir::AllEntries | QDir::NoDotAndDotDot | QDir::Hidden);
    foreach(QFileInfo fileInfo, dir.entryInfoList())
    {
        if(fileInfo.isDir())
        {
            return true;
        }
        else if(fileInfo.isFile())
        {
            return true;
        }
        else
        {
            return false;
        }
    }
    return true;
}

//刪除目標目錄
void delDir(QString path)
{
    if(path.isEmpty())
    {
        QMessageBox::warning(this,tr("警告"),tr("路徑為空"),QMessageBox::Yes);
        return;
    }
    QDir dir(path);

    dir.setFilter(QDir::AllEntries | QDir::NoDotAndDotDot | QDir::Hidden);
    foreach(QFileInfo fileInfo, dir.entryInfoList())
    {
        if(fileInfo.isFile())
        {
            if(!fileInfo.isWritable())
            {
                QFile file(fileInfo.absoluteFilePath());
                file.setPermissions(QFile::WriteOwner);
            }

            fileInfo.dir().remove(fileInfo.fileName());

        }
        else if(fileInfo.isDir())
        {
            delDir(fileInfo.absoluteFilePath());
        }
    }
    dir.rmpath(dir.absolutePath());
}

//刪除傳入的目錄
void deleteFile(QString path)
{
    QDir dir(path);
    int saveDel = QMessageBox::question(this,tr("提示"),tr("確定刪除目錄").arg(path), QMessageBox::Yes | QMessageBox::No );
   
    if(QMessageBox::Yes == saveDel)
    {
        QDir currentDir(path);
        if(judgeDir(currentDir))
        {
            delDir(currentDir.absolutePath());
        }
        else
        {
            dir.rmdir(path);
        }
    }
}