C++，Qt:双击后才能编辑qtablewidgetitem

#include <QApplication>
#include <QTableWidget>
#include <QTableWidgetItem>
#include <QLineEdit>

class MyTableWidgetItem : public QTableWidgetItem {
public:
    MyTableWidgetItem(const QString &text) : QTableWidgetItem(text) {}

protected:
    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override {
        QLineEdit *editor = new QLineEdit(parent);
        return editor;
    }
};

int main(int argc, char *argv[]) {
    QApplication app(argc, argv);

    QTableWidget tableWidget(4, 2); // 创建一个 4 行 2 列的表格
    tableWidget.setEditTriggers(QAbstractItemView::DoubleClicked); // 设置编辑触发器为双击

    // 添加自定义的 QTableWidgetItem
    MyTableWidgetItem *item = new MyTableWidgetItem("Item 1");
    tableWidget.setItem(0, 0, item);

    tableWidget.show();
    return app.exec();
}