Qt获取程序所在路径

QString applicationDirPath = QCoreApplication::applicationDirPath();   //程序所在路径
QString applicationFilePath = qApp->applicationFilePath();             //程序的完整路径
QString currentPath = QDir::currentPath();                             //当前工作目录
qDebug()<<"applicationDirPath:"<<applicationDirPath<<"   applicationFilePath:"<<applicationFilePath<<"   currentPath:"<<currentPath;