QT中启动新进程并等待结束后获取退出码与标准输出

方案之一：

//启动进程
QProcess process;
process.start("./test.exe", QStringList() << "cmd");

// 等待进程结束
if (!process.waitForFinished()) {
        qDebug() << "Process did not finish in time.";
        return;
}

// 获取退出代码
int exitCode = process.exitCode();
qDebug() << "Process exited with code:" << exitCode;

// 获取进程的标准输出
QString output = process.readAllStandardOutput();
qDebug() << "Process output:" << output;

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