Qt Qtermwidget等待命令

Question

我希望这个问题有意义，我正在使用QTermWidget在Qt Creator 2.4.1中创建一个QTermWidget实例，如图here所示。我能够运行它并向嵌入式终端发送命令没有问题，但是，我希望能够向终端发送命令，等待终端完成，然后发送其他命令，如下所示：

mainwindow.cpp：

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QDir>

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    ui->tabWidget->setUsesScrollButtons(true);

    QIcon::setThemeName("oxygen");
    this->setWindowIcon(QIcon::fromTheme("utilities-terminal"));

    console = new QTermWidget();

    QFont font = QApplication::font();
    font.setFamily("Monospace");
    font.setPointSize(12);

    console->setTerminalFont(font);
    console->setScrollBarPosition(QTermWidget::ScrollBarRight);
    console->setColorScheme("WhiteOnBlack");

    ui->tabWidget->insertTab(ui->tabWidget->currentIndex(), console,
                             QString(QDir::currentPath()));

    QString Home = "ls";
    QString enter = "\r";
    console->sendText(Home);
    // I would like the terminal to finish the previous command,
    // before sending the next one, right now it just proceeds to
    // the next line of code before it finishes.
    console->sendText(enter);

    console->sendText(QString cd);
    console->sendText(enter);
}

MainWindow::~MainWindow()
{   
delete ui;
}

提前致谢！