QT 4-5單雙選框

widget.h  :

#ifndef WIDGET_H      

#define WIDGET_H      

#include <QWidget>      

namespace Ui {      

class Widget;      

}      

class Widget : public QWidget      

{      

void displayCheckBox();      

Q_OBJECT      

public:      

explicit Widget(QWidget *parent = 0);      

~Widget();      

private slots:      

void on_radioBtn1_clicked();      

void on_radioBtn2_clicked();      

void on_checkBox1_clicked();      

void on_checkBox2_clicked();      

private:      

Ui::Widget *ui;      

};      

#endif // WIDGET_H      

widget.h  :

#include "widget.h"      

#include "ui_widget.h"      

Widget::Widget(QWidget *parent) :      

QWidget(parent),      

ui(new Ui::Widget)      

{      

ui->setupUi(this);      

}      

Widget::~Widget()      

{      

delete ui;      

}      

void Widget::on_radioBtn1_clicked()      

{      

ui->radioBtn1->setCheckable(true);      

ui->label->setText("RadioButton1 is checked!");      

}      

void Widget::on_radioBtn2_clicked()      

{      

ui->radioBtn2->setCheckable(true);      

ui->label->setText("RadioButton2 is checked!");      

}      

void Widget::on_checkBox1_clicked()      

{      

this->displayCheckBox();      

}      

void Widget::on_checkBox2_clicked()      

{      

this->displayCheckBox();      

}      

void Widget::displayCheckBox()      

{      

QString str="";      

if(ui->checkBox1->isChecked()&&ui->checkBox2->isChecked())      

{      

str="CheckBox1 is Checked!\nCheckBox2 is Checked!";      

}      

else if(ui->checkBox1->isChecked()){      

str+="CheckBox1 is checked!";      

}      

else if(ui->checkBox2->isChecked()){      

str+="CheckBox2 is checked!";      

}      

ui->label_2->setText(str);      

}      

main.cpp   :

#include "widget.h"      

#include <QApplication>      

int main(int argc, char *argv[])      

{      

QApplication a(argc, argv);      

Widget w;      

w.show();      

return a.exec();      

}