Qt 学习：添加动作、资源文件

//mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include<stdio.h>
namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

private slots:

private:
    void open();
    QAction *openAction;
    Ui::MainWindow *ui;
};

#endif // MAINWINDOW_H



//main.cpp
#include "mainwindow.h"
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();
    return a.exec();
}


//mainwindow.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QAction>
#include <QMenuBar>
#include <QMessageBox>
#include <QStatusBar>
#include <QToolBar>

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
        ui->setupUi(this);
        setWindowTitle(tr("Hello Qt"));
        QIcon icon(":/images/pic.png");
        setWindowIcon(icon);
        openAction = new QAction(QIcon(":/images/pic.png"), tr("&Open..."), this);
        openAction->setShortcuts(QKeySequence::Open);
        openAction->setStatusTip(tr("Open an existing file"));
        connect(openAction, &QAction::triggered, this, &MainWindow::open);

        QMenu *file = menuBar()->addMenu(tr("&File"));
        file->addAction(openAction);

        QToolBar *toolBar = addToolBar(tr("&File"));
        toolBar->addAction(openAction);

        statusBar() ;
}

MainWindow::~MainWindow()
{
    delete ui;
}
void MainWindow::open()
{
    QMessageBox::information(this, tr("Information"), tr("Open"));
}

运行结果：

学习链接：添加动作

                 添加资源文件