main.cpp
#include <QApplication>
#include "mywidget.h"
#include <QPushButton>
int main(int argc, char **argv)
{
QApplication app(argc, argv);
MyWidget w;
w.show();
return app.exec();
main.cpp
#include <QApplication>
#include "mywidget.h"
#include <QPushButton>
int main(int argc, char **argv)
{
QApplication app(argc, argv);
MyWidget w;
w.show();
return app.exec();