QT 4-5单双选框

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();

}