When using Qt's QChartView to draw a line chart, the category name represented by the line cannot be displayed?

#include <QApplication>
#include <QMainWindow>
#include <QDateTime>
#include <QChartView>
#include <QLineSeries>
QT_CHARTS_USE_NAMESPACE

int main(int argc, char **argv) {
    QApplication application(argc, argv);

    auto *series01 = new QLineSeries();
    series01->setName("line01");
    ...

    auto *series02 = new QLineSeries();
    series02->setName("line02");
    ...

    auto *chart = new QChart();
    chart->legend()->hide();
    chart->addSeries(series01);
    chart->addSeries(series02);
    series01->setUseOpenGL(true);
    chart->createDefaultAxes();
    chart->setTitle(QStringLiteral("Qt line chart example"));

    auto *view = new QChartView(chart, nullptr);
    view->setRenderHint(QPainter::Antialiasing);
    view->resize(1000, 600);
    view->show();

    return QApplication::exec();
}

The current line chart looks like this:

How can I display their respective names for these two lines?

You only need to display their names, and the colors need to correspond, and the position and shape are not necessary.