删除目标的目录，若该目录下有子目录，一并删除。

1 //判断是否存在子目录 2 bool judgeDir(QDir dir) 3 { 4     dir.setFilter(QDir::AllEntries | QDir::NoDotAndDotDot | QDir::Hidden); 5     foreach(QFileInfo fileInfo, dir.entryInfoList()) 6     { 7         if(fileInfo.isDir()) 8         { 9             return true;10         }11         else if(fileInfo.isFile())12         {13             return true;14         }15         else16         {17             return false;18         }19     }20     return true;21 }22 23 //删除目标目录24 void delDir(QString path)25 {26     if(path.isEmpty())27     {28         QMessageBox::warning(this,tr("警告"),tr("路径为空"),QMessageBox::Yes);29         return;30     }31     QDir dir(path);32 33     dir.setFilter(QDir::AllEntries | QDir::NoDotAndDotDot | QDir::Hidden);34     foreach(QFileInfo fileInfo, dir.entryInfoList())35     {36         if(fileInfo.isFile())37         {38             if(!fileInfo.isWritable())39             {40                 QFile file(fileInfo.absoluteFilePath());41                 file.setPermissions(QFile::WriteOwner);42             }43 44             fileInfo.dir().remove(fileInfo.fileName());45 46         }47         else if(fileInfo.isDir())48         {49             delDir(fileInfo.absoluteFilePath());50         }51     }52     dir.rmpath(dir.absolutePath());53 }54 55 //删除传入的目录56 void deleteFile(QString path)57 {58     QDir dir(path);59     int saveDel = QMessageBox::question(this,tr("提示"),tr("确定删除目录").arg(path), QMessageBox::Yes | QMessageBox::No );60    61     if(QMessageBox::Yes == saveDel)62     {63         QDir currentDir(path);64         if(judgeDir(currentDir))65         {66             delDir(currentDir.absolutePath());67         }68         else69         {70             dir.rmdir(path);71         }72     }73 }