qt中调用linux命令行

#include <QCoreApplication>
#include <QProcess>
#include <QDebug>

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

    QProcess process;
    QString program = "ls"; // 例如，列出当前目录下的文件
    QStringList arguments;
    arguments << "-l";

    process.start(program, arguments);
    if (!process.waitForStarted()) {
        qDebug() << "Failed to start process:" << process.errorString();
        return -1;
    }

    if (!process.waitForFinished()) {
        qDebug() << "Process failed to finish:" << process.errorString();
        return -1;
    }

    QByteArray result = process.readAllStandardOutput();
    qDebug() << "Command output:" << result;

    return a.exec();
}

#include <QCoreApplication>
#include <QProcess>
#include <QDebug>

class CommandExecutor : public QObject
{
    Q_OBJECT
public:
    CommandExecutor(QObject *parent = nullptr) : QObject(parent)
    {
        process = new QProcess(this);
        connect(process, &QProcess::readyReadStandardOutput, this, &CommandExecutor::readOutput);
        connect(process, QOverload<QProcess::ProcessError>::of(&QProcess::errorOccurred), this, &CommandExecutor::handleError);
    }

    void execute(const QString &program, const QStringList &arguments)
    {
        process->start(program, arguments);
    }

private slots:
    void readOutput()
    {
        QByteArray output = process->readAllStandardOutput();
        qDebug() << "Output:" << output;
    }

    void handleError(QProcess::ProcessError error)
    {
        qDebug() << "Error:" << error << process->errorString();
    }

private:
    QProcess *process;
};

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

    CommandExecutor executor;
    executor.execute("ls", {"-l"});

    return a.exec();
}

#include "main.moc"