如何在Qt中复制图像文件？

#include <QCoreApplication>
#include <QFile>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QString sourceFile = "source.png";
    QString targetFile = "target.png";

    QFile file(sourceFile);
    if (file.copy(targetFile)) {
        qDebug() << "File copied successfully!";
    } else {
        qDebug() << "Failed to copy file!";
    }

    return a.exec();
}