簡易QT範例--使用常用QT之元件---於上 QT 課程時實作的

程式執行結果，如下圖所示:

程式檔案共有四個，p9.h、Uip9.h、Uip9.cpp、p9.cpp，程式碼分列如下:

程式檔p9.h:

#ifndef P9_H
#define P9_H

#include
#include
#include
#include
#include
#include
#include
#include
#include
#include

class Ui_Form
{
public:
    QLabel *label;
    QLineEdit *lineEdit;
    QRadioButton *radioButton_2;
    QLabel *label_2;
    QLabel *label_3;
    QPushButton *pushButton;
    QRadioButton *radioButton;
    QCheckBox *checkBox_2;
    QCheckBox *checkBox_3;
    QCheckBox *checkBox;

    void setupUi(QWidget *Form)
    {
    Form->setObjectName(QString::fromUtf8("Form"));
    Form->resize(QSize(236, 300).expandedTo(Form->minimumSizeHint()));
    label = new QLabel(Form);
    label->setObjectName(QString::fromUtf8("label"));
    label->setGeometry(QRect(30, 40, 31, 16));
    lineEdit = new QLineEdit(Form);
    lineEdit->setObjectName(QString::fromUtf8("lineEdit"));
    lineEdit->setGeometry(QRect(60, 40, 113, 20));
    radioButton_2 = new QRadioButton(Form);
    radioButton_2->setObjectName(QString::fromUtf8("radioButton_2"));
    radioButton_2->setGeometry(QRect(60, 110, 31, 17));
    label_2 = new QLabel(Form);
    label_2->setObjectName(QString::fromUtf8("label_2"));
    label_2->setGeometry(QRect(30, 90, 31, 16));
    label_3 = new QLabel(Form);
    label_3->setObjectName(QString::fromUtf8("label_3"));
    label_3->setGeometry(QRect(30, 140, 31, 16));
    pushButton = new QPushButton(Form);
    pushButton->setObjectName(QString::fromUtf8("pushButton"));
    pushButton->setGeometry(QRect(60, 210, 75, 23));
    radioButton = new QRadioButton(Form);
    radioButton->setObjectName(QString::fromUtf8("radioButton"));
    radioButton->setGeometry(QRect(60, 90, 41, 17));
    radioButton->setChecked(true);
    checkBox_2 = new QCheckBox(Form);
    checkBox_2->setObjectName(QString::fromUtf8("checkBox_2"));
    checkBox_2->setGeometry(QRect(60, 160, 74, 17));
    checkBox_3 = new QCheckBox(Form);
    checkBox_3->setObjectName(QString::fromUtf8("checkBox_3"));
    checkBox_3->setGeometry(QRect(60, 180, 74, 17));
    checkBox_3->setCheckable(false);
    checkBox = new QCheckBox(Form);
    checkBox->setObjectName(QString::fromUtf8("checkBox"));
    checkBox->setGeometry(QRect(60, 140, 74, 17));
    retranslateUi(Form);
    QObject::connect(pushButton, SIGNAL(clicked()), Form, SLOT(setFocus()));

    QMetaObject::connectSlotsByName(Form);
    } // setupUi

    void retranslateUi(QWidget *Form)
    {
    Form->setWindowTitle(QApplication::translate("Form", "Form", 0, QApplication::UnicodeUTF8));
    label->setText(QApplication::translate("Form", "\345\247\223\345\220\215", 0, QApplication::UnicodeUTF8));
    radioButton_2->setText(QApplication::translate("Form", "\345\245\263", 0, QApplication::UnicodeUTF8));
    label_2->setText(QApplication::translate("Form", "\346\200\247\345\210\245", 0, QApplication::UnicodeUTF8));
    label_3->setText(QApplication::translate("Form", "\350\210\210\350\266\243", 0, QApplication::UnicodeUTF8));
    pushButton->setText(QApplication::translate("Form", "PushButton", 0, QApplication::UnicodeUTF8));
    radioButton->setText(QApplication::translate("Form", "\347\224\267", 0, QApplication::UnicodeUTF8));
    checkBox_2->setText(QApplication::translate("Form", "\347\234\213\351\233\273\345\275\261", 0, QApplication::UnicodeUTF8));
    checkBox_3->setText(QApplication::translate("Form", "\346\270\270\346\263\263", 0, QApplication::UnicodeUTF8));
    checkBox->setText(QApplication::translate("Form", "\351\226\261\350\256\200\343\200\201", 0, QApplication::UnicodeUTF8));
    Q_UNUSED(Form);
    } // retranslateUi

};

namespace Ui {
    class Form: public Ui_Form {};
} // namespace Ui

#endif // P9_H

//--------------------------------------------------------------------------------------------------------

程式檔Uip9.h:

//#include
//#include
//#include
#include "p9.h"

class Uip9 : public QWidget, public Ui::Form
{
    Q_OBJECT

public:
    Uip9(QWidget *parent = 0);
private slots:
    void setFocus();
};

//--------------------------------------------------------------------------------------------------------

程式檔Uip9.cpp:

#include
#include
#include "Uip9.h"

Uip9::Uip9(QWidget *parent) : QWidget(parent)
{
   setupUi( this );
}
void Uip9::setFocus()
{     
  QString str1 = "";                                                 // QMessageBox::Ok  "OK"
  if( lineEdit->text().trimmed() == "" )
  {
    QMessageBox::information( this, "info", "lineEdit text is whitespace", "_OK_" );
    lineEdit->setFocus();
    lineEdit->setText( "" );
  }
  else
  {
    //QMessageBox::information( this, "info", "Name="+lineEdit->text().trimmed(), "_OK_" );
    if( radioButton->isChecked() )
      str1 = str1 + "sex=Male ";
    else if( radioButton_2->isChecked() )
      str1 = str1 + "sex=Female ";
     
    str1 = str1 + "Interest=";
    if( checkBox->isChecked() )
      str1 = str1 + QApplication::translate("Form", "\351\226\261\350\256\200\343\200\201", 0, QApplication::UnicodeUTF8);
    if( checkBox_2->isChecked() )
      str1 = str1 + QApplication::translate("Form", "\346\270\270\346\263\263", 0, QApplication::UnicodeUTF8);  
    if( checkBox_3->isChecked() )
      str1 = str1 + QApplication::translate("Form", "\346\270\270\346\263\263", 0, QApplication::UnicodeUTF8);
     
    QMessageBox::information( this, "info", "Name="+lineEdit->text().trimmed() + "\n" + str1, "_OK_" );           
  }   
}
/*
    QLabel *label;
    QLineEdit *lineEdit;
    QRadioButton *radioButton;
    QRadioButton *radioButton_2;
    QLabel *label_2;
    QLabel *label_3;
    QCheckBox *checkBox;
    QCheckBox *checkBox_2;
    QCheckBox *checkBox_3;
    QPushButton *pushButton;
int QMessageBox::information ( QWidget * parent, const QString & caption,
                               const QString & text, int button0, int button1 = 0, int button2 = 0 )  [static]   
int QMessageBox::information ( QWidget * parent, const QString & caption,
                               const QString & text, const QString & button0Text = QString(), const QString & button1Text = QString(), const QString & button2Text = QString(), int defaultButtonNumber = 0, int escapeButtonNumber = -1 )  [static]
*/

//--------------------------------------------------------------------------------------------------------

程式檔p9.cpp:

#include
#include "Uip9.h"

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    Uip9 *dialog = new Uip9;
    dialog->show();
    return app.exec();
}