请教Qt中QList::first用法

Question

    chart->legend()->hide();
    chart->addSeries(series);
    chart->setTitle("测试曲线");
    chart->createDefaultAxes();

    chart->axes(Qt::Vertical).first()->setRange(-10, 10);

    ui->chartView->setChart(chart);
    ui->chartView->setRenderHint(QPainter::Antialiasing);

报：Don't call QList::first() on temporary [clazy-detaching-temporary]、

请问该怎么修改？

Answer 1

不要用临时变量去调用 first函数