在QT中如何将网络图片保存到本地

void saveImage(const QString url)
{
    QNetworkRequest request(url);
    QNetworkAccessManager *networkManager = new QNetworkAccessManager();
    QNetworkReply *reply = networkManager->get(request);
    QEventLoop eventLoop;
    QObject::connect(reply, SIGNAL(finished()), &eventLoop, SLOT(quit()));
    eventLoop.exec();
    if(reply->error() == QNetworkReply::NoError)
    {
        auto data = reply->readAll();
        auto image = QImage::fromData(data);
        image.save("E:/test.png");
    }
    else
    {
        qDebug() << reply->errorString();
    }
}

说明：第12,13行通过QImage保存图片数据，也可通过QFile来实现。