Qt 删除目录

删除目标的目录，若该目录下有子目录，一并删除。

 //判断是否存在子目录
 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;
 }

 //删除目标目录
 void delDir(QString path)
 {
     if(path.isEmpty())
     {
         QMessageBox::warning(this,tr("警告"),tr("路径为空"),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());
 }

 //删除传入的目录
 void deleteFile(QString path)
 {
     QDir dir(path);
     int saveDel = QMessageBox::question(this,tr("提示"),tr("确定删除目录").arg(path), QMessageBox::Yes | QMessageBox::No );

     if(QMessageBox::Yes == saveDel)
     {
         QDir currentDir(path);
         if(judgeDir(currentDir))
         {
             delDir(currentDir.absolutePath());
         }
         else
         {
             dir.rmdir(path);
         }
     }
 }