6_2.cpp

一个qt设计的教程

#include <qapplication.h>
#include <qwidget.h>
#include <qbuttongroup.h>
#include <qradiobutton.h>

class MyMainWindow:public QWidget
{
 public:
    MyMainWindow();
 private:
    QButtonGroup *group;
    QRadioButton *b1;
    QRadioButton *b2;
    QRadioButton *b3;
};

MyMainWindow::MyMainWindow()
{
 setGeometry(100,100,150,140);

 group = new QButtonGroup("Options",this);
 group->setGeometry(10,10,130,120);

 b1 = new QRadioButton("Choice 1",group);
 b1->move(20,20); 
 b2 = new QRadioButton("Choice 2",group);
 b2->move(20,50); 
 b3 = new QRadioButton("Choice 3",group);
 b3->move(20,80); 
 
 group->insert(b1);
 group->insert(b2);
 group->insert(b3);
}

main(int argc,char **argv)
{
 QApplication a(argc,argv);
 MyMainWindow w;

 a.setMainWidget(&w);
 w.show();
 a.exec();
}