qt6，将一个zip压缩包拷贝到用户自选的一个地址，并且命名-QT开发中文网

在Qt 6中，你可以使用QFileDialog和QFile类来实现将ZIP压缩包拷贝到用户选择的地址并命名的功能。以下是示例代码：

#include <QApplication>
#include <QFileDialog>
#include <QMessageBox>
#include <QByteArray>
#include <QFile>

class ZipCopier : public QObject
{
    Q_OBJECT

public:
    explicit ZipCopier(QObject *parent = nullptr) : QObject(parent)
    {
        connect(&fileDialog, &QFileDialog::fileSelected, this, &ZipCopier::copyFile);
    }

public slots:
    void chooseDestination()
    {
        fileDialog.setAcceptMode(QFileDialog::AcceptSave);
        fileDialog.setWindowTitle("Choose Destination");
        fileDialog.setNameFilter("ZIP Files (*.zip)");
        fileDialog.exec();
    }

private slots:
    void copyFile(const QString &sourceFilePath)
    {
        QString destinationFilePath = fileDialog.selectedFiles().at(0);

        QFile sourceFile(sourceFilePath);
        QFile destinationFile(destinationFilePath);

        if (!sourceFile.exists()) {
            QMessageBox::critical(nullptr, "Error", "Source file does not exist.");
            return;
        }

        if (!sourceFile.open(QIODevice::ReadOnly)) {
            QMessageBox::critical(nullptr, "Error", "Failed to open source file for reading.");
            return;
        }

        if (!destinationFile.open(QIODevice::WriteOnly)) {
            QMessageBox::critical(nullptr, "Error", "Failed to open destination file for writing.");
            return;
        }

        qint64 fileSize = sourceFile.size();

        while (!sourceFile.atEnd()) {
            QByteArray buffer = sourceFile.read(8192); // 缓冲区大小可根据需要进行调整
            qint64 bytesWritten = destinationFile.write(buffer);

            if (bytesWritten == -1) {
                QMessageBox::critical(nullptr, "Error", "Failed to write data to destination file.");
                return;
            }

            // 进度计算示例
            qint64 bytesProcessed = sourceFile.pos();
            int progress = static_cast<int>((bytesProcessed * 100) / fileSize);
            qDebug() << "Progress:" << progress;
        }

        sourceFile.close();
        destinationFile.close();

        QMessageBox::information(nullptr, "Success", "ZIP file copied successfully.");
    }

private:
    QFileDialog fileDialog;
};

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    ZipCopier zipCopier;

    // 在主窗口弹出对话框中选择存放地址
    QTimer::singleShot(0, [&]() { zipCopier.chooseDestination(); });

    return app.exec();
}

#include "main.moc"

这段代码将允许用户选择要保存的文件路径和文件名，并使用QFile类将源ZIP文件复制到目标位置。你可以根据需要修改和扩展此示例，添加错误处理和进度更新等功能。

内容由零声教学AI助手提供，问题来源于学员提问