使用QFileInfo获取文件路径和名称

    QFileInfo fileInfo("E:/temp/myfile.tar.txt");
    qDebug() << "path:" << fileInfo.path();
    qDebug() << "filePath:" << fileInfo.filePath();
    qDebug() << "absolutePath:" << fileInfo.absolutePath();
    qDebug() << "absoluteFilePath:" << fileInfo.absoluteFilePath();
    qDebug() << "fileName:" << fileInfo.fileName();
    qDebug() << "baseName:" << fileInfo.baseName();
    qDebug() << "completeBaseName:" << fileInfo.completeBaseName();
    qDebug() << "suffix:" << fileInfo.suffix();
    qDebug() << "completeSuffix:" << fileInfo.completeSuffix();

输出：

path: "E:/temp"
filePath: "E:/temp/myfile.tar.txt"
absolutePath: "E:/temp"
absoluteFilePath: "E:/temp/myfile.tar.txt"
fileName: "myfile.tar.txt"
baseName: "myfile"
completeBaseName: "myfile.tar"
suffix: "txt"
completeSuffix: "tar.txt"