qt之QTableWidget按列遍历数据

QObject::connect(ui->tableWidget_4, &QTableWidget::itemSelectionChanged,[=](){

        QList<QTableWidgetItem *> selectedItems = ui->tableWidget_4->selectedItems();
                if (!selectedItems.isEmpty()) {
                    int selectedColumn = selectedItems.first()->column();
                    qDebug() << "Selected column:" << selectedColumn;

                    QStringList itemsInSelectedColumn;
                    for (int row = 0; row < ui->tableWidget_4->rowCount(); ++row) {
                        QTableWidgetItem *item = ui->tableWidget_4->item(row, selectedColumn);
                        if (item) {
                            itemsInSelectedColumn.append(item->text());
                        }
                    }

                    qDebug() << "Items in selected column:";
                    qDebug() << itemsInSelectedColumn;
                }


    });