#include "widget.h" #include "ui_widget.h" #include Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) { ui->setupUi(this); } Widget::~Widget() { delete ui; } void Widget::on_hungryButton_clicked() { QMessageBox::information(this, tr("送餐"), tr("叮咚!外卖已送达")); }