使用 QProcess 时无法读取命令的输出

Question

我的程序需要发送带有 QProcess 的命令行并检索结果，然后将其显示在 GUI 中。我要执行并读取其输出的命令是 ostree remote refs kinoite
这是我的代码：

    QProcess* process = new QProcess();

    connect(process,&QProcess::readyReadStandardError,[process]() {
        qWarning()<<"Error: " << process->readAllStandardError();
    });
    
    //catch data output
    connect(process,&QProcess::readyReadStandardOutput,[process]() {
            qWarning()<<"Output: " << process->readAllStandardOutput();
    });

    // delete process instance when done, and get the exit status to handle errors.
    QObject::connect(process, QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
                     [=](int exitCode, QProcess::ExitStatus exitStatus){
        qWarning()<< "process exited with code " << exitCode;
        process->deleteLater();
    });

    process->setWorkingDirectory(QStringLiteral("~"));
    process->start(QStringLiteral("ostree"), {QStringLiteral("remote"), QStringLiteral("refs"), QStringLiteral("kinoite")});

收不到信号，所以使用qWarning()
时终端上没有任何显示请帮忙。
谢谢

Answer 1

问题不是 QProcess，而是因为工具箱中的运行 QProcess。

使用 QProcess 时无法读取命令的输出

Can't read the output of the command when using QProcess

qprocess