void MainWindow::on_pushButton_clicked()

{

    QDir dir=QFileDialog::getExistingDirectory(this, tr("Open Directory"),

                                               "",

                                               QFileDialog::ShowDirsOnly

                                               | QFileDialog::DontResolveSymlinks);

    QStringList nameFilters;

    nameFilters << "*.c" << "*.h";

    QDirIterator dirIterator(dir.path(), nameFilters, QDir::Files | QDir::NoSymLinks | QDir::NoDotAndDotDot, QDirIterator::Subdirectories);

    QStringList fileName;

    while(dirIterator.hasNext())

    {

        fileName << dirIterator.fileName();

        dirIterator.next();

    }

    if(fileName.empty())

        return;

    fileName.removeFirst();

    ui->tableWidget->setColumnCount(2);

    ui->tableWidget->setRowCount(fileName.size());

    QStringList headers;

    headers << QStringLiteral("文件") << QStringLiteral("类型");

    ui->tableWidget->setHorizontalHeaderLabels(headers);

    for(int i=0;i<fileName.size();i++)

        ui->tableWidget->setItem(i,0,new QTableWidgetItem(iconText,fileName[i]));

}