QT 删除文件指定目录

 bool deleteDir(const QString &dirName)
 {
     QDir directory(dirName);
     if (!directory.exists())
     {
         return true;
     }

     QString srcPath = QDir::toNativeSeparators(dirName);
     if (!srcPath.endsWith(QDir::separator()))
         srcPath += QDir::separator();

     QStringList fileNames = directory.entryList(QDir::AllEntries | QDir::NoDotAndDotDot | QDir::Hidden);
     bool error = false;
     for (QStringList::size_type i=; i != fileNames.size(); ++i)
     {
         QString filePath = srcPath + fileNames.at(i);
         QFileInfo fileInfo(filePath);
         if (fileInfo.isFile() || fileInfo.isSymLink())
         {
             QFile::setPermissions(filePath, QFile::WriteOwner);
             if (!QFile::remove(filePath))
             {
                 qDebug() << "remove file" << filePath << " faild!";
                 error = true;
             }
         }
         else if (fileInfo.isDir())
         {
             if (!deleteDir(filePath))
             {
                 error = true;
             }
         }
     }

     if (!directory.rmdir(QDir::toNativeSeparators(directory.path())))
     {
         qDebug() << "remove dir" << directory.path() << " faild!";
         error = true;
     }
     return !error;
 }