QT 按钮(4种样式)

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新建Qt Widgets Application

mainwindow.h

#ifndef MAINWINDOW_H#define MAINWINDOW_H#include <QPushButton>#include <QMainWindow>#include <QHBoxLayout>class QPushButton;namespace Ui {class MainWindow;}class MainWindow : public QMainWindow{    Q_OBJECTpublic:    explicit MainWindow(QWidget *parent = 0);    ~MainWindow();private:    Ui::MainWindow *ui;     QPushButton *btnNormal_;     QPushButton *btnCheck_;     QPushButton *btnMenu_;     QPushButton *btnFlat_;     QHBoxLayout *layout;};#endif // MAINWINDOW_H

main.h

#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 <QPushButton>#include <QMenu>#include <QVBoxLayout>MainWindow::MainWindow(QWidget *parent) :    QMainWindow(parent),    ui(new Ui::MainWindow){    ui->setupUi(this);    // 1.正常    btnNormal_ = new QPushButton("Normal Button", this);    //btnNormal_->setFlat(true);      //设置按钮的文本信息     btnNormal_->setText("Test1");    btnNormal_->setGeometry(20,30,100,40);      //layout->addWidget(pushButton3D);    // 2.可停驻    btnCheck_ = new QPushButton("Toggle Button", this);    btnCheck_->setCheckable(true);    //btnCheck_->setChecked(true);    btnCheck_->setFlat(true);      //设置按钮的文本信息    btnCheck_->setText("Test2");    btnCheck_->setGeometry(150,30,100,40);    // 3.带弹出式菜单    btnMenu_ = new QPushButton( "Popup Button", this);    QMenu *menu = new QMenu;    menu->addAction("Open Item");    menu->addAction("Save Item");    menu->addMenu("More Item");    menu->addSeparator();    menu->addAction("Close Item");    btnMenu_->setMenu(menu);    btnMenu_->setGeometry(20,90,100,40);     // 4.平坦样式    btnFlat_ = new QPushButton("Flat Button", this);    btnFlat_->setFlat(true);    btnFlat_->setGeometry(150,90,100,40);    QVBoxLayout *layout = new QVBoxLayout();    layout->addWidget(btnNormal_);    layout->addWidget(btnCheck_);    layout->addWidget(btnMenu_);    layout->addWidget(btnFlat_);}MainWindow::~MainWindow(){    delete ui;}

结果显示如下：

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