MainWindow::MainWindow(QWidget *parent) :

QMainWindow(parent),

ui(new Ui::MainWindow)

{

ui->setupUi(this);

connect(ui->lineEdit,SIGNAL(returnPressed()),this,SLOT(on_pushButton_clicked()));

}

MainWindow::~MainWindow()

{

delete ui;

}

void MainWindow::on_pushButton_clicked()

{

QProcess process;

process.start(ui->lineEdit->text());

process.waitForFinished();

QByteArray output = process.readAllStandardOutput();

QString str_output = output;

ui->textBrowser->setText(str_output);

qDebug()<<output;

//关机

void MainWindow::Shutdown()

{

QProcess::execute("shutdown now");

}