pDialog->addSeparator();

    QAction *pmb2 = pDialog->addAction(QString::fromLocal8Bit("选择对话框"));

    connect(pmb2, &QAction::triggered,

        [this](){

            QMessageBox * mBox = new QMessageBox(this);

            mBox->setWindowTitle(QString::fromLocal8Bit("中文选择对话框标题"));

            mBox->setText(QString::fromLocal8Bit("中文选择对话框内容"));

            mBox->setStandardButtons(QMessageBox::StandardButton::Ok | QMessageBox::StandardButton::Cancel);

            mBox->setButtonText(QMessageBox::StandardButton::Ok, QString::fromLocal8Bit("确定"));

            mBox->setButtonText(QMessageBox::StandardButton::Cancel, QString::fromLocal8Bit("取消"));

            mBox->exec();

            QMessageBox::StandardButton ret = mBox->standardButton(mBox->clickedButton());

            switch (ret)

            {

            case QMessageBox::NoButton:

                qDebug() << QString::fromLocal8Bit("没有选择").toStdString().c_str();

                break;

            case QMessageBox::Ok:

                qDebug() << QString::fromLocal8Bit("确定").toStdString().c_str();

                break;

            case QMessageBox::Cancel:

                qDebug() << QString::fromLocal8Bit("取消").toStdString().c_str();

                break;

            default:

                break;

            }

            if (mBox != nullptr)

            {

                delete mBox;

                mBox = nullptr;

            }

        });

确定
取消

取消

    pDialog->addSeparator();

    QAction *pfdalg = pDialog->addAction(QString::fromLocal8Bit("文件对话框"));

    connect(pfdalg, &QAction::triggered,

        [this](){

            QFileDialog * fileDialog = new QFileDialog(this);

            //fileDialog->setDirectory("E:\\");

            fileDialog->setWindowTitle(QString::fromLocal8Bit("选择文件"));

            fileDialog->setNameFilter(QString::fromLocal8Bit("All C++ files (*.cpp *.cc *.C *.cxx *.c++ *.txt *.png)"));

            if ( fileDialog->exec() == QDialog::DialogCode::Accepted )

            {

                QString path = fileDialog->selectedFiles()[];

                QMessageBox::information(nullptr, QString::fromLocal8Bit("选择的文件"), QString::fromLocal8Bit("文件路径: ") + path);

            }

            else

            {

                QMessageBox::information(nullptr, QString::fromLocal8Bit("选择的文件"), QString::fromLocal8Bit("没有选择文件"));

            }

    });