#pragma once

#include <QtWidgets/QMainWindow>
#include "ui_mainwindow.h"
#include <QMenuBar> //選單欄
#include <QMenu> //選單
#include <QAction> //選單裡面的選項
#include <QToolBar> //工具欄
#include <QToolButton> // 工具按鈕
#include <QStatusBar> //狀態列
#include <QTextEdit> //多行文字框
#include <QLabel>
class
 
 mainwindow : public QMainWindow
{
    Q_OBJECT

public:
    mainwindow(QWidget *parent = Q_NULLPTR);
    void init(); //初始化
    void test(); //測試 呼叫
private:
    Ui::mainwindowClass ui;
private:
    QMenuBar * mainMenuBar;
    QMenu * fileMenu;
    QAction * newaction;
    QAction * saveaction;c
    QAction 
 
* closeaction;

    QMenu * editMenu;
    QAction * copyaction;
    QMenu * buildMenu;
    QAction * startaction;


    QToolBar * mainToolBar;
    QToolButton * opentbtn;

    QStatusBar * minaStatusBar;
    QLabel * labe1;
};

原始檔

#include "mainwindow.h"

mainwindow::mainwindow(QWidget *parent)
    : QMainWindow(parent)
{
    ui.setupUi(
 
this);
    init();
    test();
}

void mainwindow::init()
{
     mainMenuBar = new QMenuBar;  //建立選單欄
     mainToolBar = new QToolBar; //建立工具欄
     minaStatusBar = new QStatusBar; //建立狀態列
}

void mainwindow::test()
{
    this->setMenuBar(mainMenuBar); //新增選單欄
    this->addToolBar(mainToolBar); //新增工具欄
    this->setStatusBar(minaStatusBar); //新增狀態列
//選單欄設定
    fileMenu = mainMenuBar->addMenu(QString::fromLocal8Bit("檔案")); //用這種方式建立選單
    newaction = new QAction(QString::fromLocal8Bit("新建檔案"));  //建立選單項
    closeaction = new QAction(QString::fromLocal8Bit("關閉檔案"));
    saveaction = new QAction(QString::fromLocal8Bit("儲存檔案"));
    fileMenu->addAction(newaction);  //新增選單項
    fileMenu->addAction(closeaction);
    fileMenu->addAction(saveaction);

    editMenu = mainMenuBar->addMenu(QString::fromLocal8Bit("編輯"));  //用這種方式建立選單
    copyaction = new QAction(QString::fromLocal8Bit("拷貝檔案"));
    editMenu->addAction(copyaction); //新增選單選項
    buildMenu = mainMenuBar->addMenu(QString::fromLocal8Bit("構建"));
    startaction = new QAction(QString::fromLocal8Bit("啟動"));
    buildMenu->addAction(startaction); //新增選單選項

//工具欄設定
    
    opentbtn = new QToolButton; //mainToolBar
    opentbtn->setText(QString::fromLocal8Bit("點選"));
    mainToolBar->addWidget(opentbtn);

//狀態列設定
    labe1 = new QLabel;
    labe1->setText(QString::fromLocal8Bit("雀巢金牌速溶咖啡"));
    minaStatusBar->addWidget(labe1);

    
}