我使用的是QT版本是QT-2.3.7,出现的问题是第二个窗体不能显示出来！！！
具体的代码如下:
/****************************Main.cpp*********************************************/
#include <qapplication.h>
#include "formtest.h"
int main( int argc, char ** argv )
{
QApplication app( argc, argv );
First formTest;
app.setMainWidget(&formTest);
formTest.show();
return app.exec();
}
/*第一个窗体的文件******************************************************************/
/******************formtest.h***********************/
/****************************************************************************
** Form interface generated from reading ui file 'formtest.ui'
**
** Created: Thu May 21 20:30:55 2009
** by: The User Interface Compiler (uic)
**
** WARNING! All changes made in this file will be lost!
****************************************************************************/
#ifndef FIRST_H
#define FIRST_H
#include <qvariant.h>
#include <qwidget.h>
#include "./formtest2.h"
class QVBoxLayout;
class QHBoxLayout;
class QGridLayout;
class QPushButton;
class SecondForm;
class First : public QWidget
{
Q_OBJECT
public:
First( QWidget* parent = 0, const char* name = 0, WFlags fl = 0 );
~First();
QPushButton* OKButton;
SecondForm secondForm;
private slots:
void displayForm2( );
};
#endif // FIRST_H
/**************formtest.cpp************************/
/****************************************************************************
** Form implementation generated from reading ui file 'formtest.ui'
**
** Created: Thu May 21 20:31:05 2009
** by: The User Interface Compiler (uic)
**
** WARNING! All changes made in this file will be lost!
****************************************************************************/
#include "formtest.h"
#include <qpushbutton.h>
#include <qlayout.h>
#include <qvariant.h>
#include <qtooltip.h>
#include <qwhatsthis.h>
/*
* Constructs a First which is a child of 'parent', with the
* name 'name' and widget flags set to 'f'
*/
First::First( QWidget* parent, const char* name, WFlags fl )
: QWidget( parent, name, fl )
{
if ( !name )
setName( "First" );
resize( 400, 400 );
setMaximumSize( QSize( 400, 400 ) );
setCaption( tr( "first" ) );
OKButton = new QPushButton( this, "OKButton" );
OKButton->setGeometry( QRect( 140, 70, 70, 40 ) );
OKButton->setText( tr( "OK" ) );
connect(OKButton, SIGNAL( clicked() ), this, SLOT( displayForm2( ) ) );
}
/*
* Destroys the object and frees any allocated resources
*/
First::~First()
{
// no need to delete child widgets, Qt does it all for us
}
void First::displayForm2( )
{
this->close();
secondForm.show();
}
/*第二个窗体的文件************************************************************/
/***********************************formtest2.h****************************************/
/****************************************************************************
** Form interface generated from reading ui file 'formtest2.ui'
**
** Created: Thu May 21 20:31:18 2009
** by: The User Interface Compiler (uic)
**
** WARNING! All changes made in this file will be lost!
****************************************************************************/
#ifndef SECONDFORM_H
#define SECONDFORM_H
#include <qvariant.h>
#include <qwidget.h>
class QVBoxLayout;
class QHBoxLayout;
class QGridLayout;
class QTextBrowser;
class SecondForm : public QWidget
{
Q_OBJECT
public:
SecondForm( QWidget* parent = 0, const char* name = 0, WFlags fl = 0 );
~SecondForm();
QTextBrowser* TextBrowser1;
};
#endif // SECONDFORM_H
/****************************************formtest2.cpp********************************/
/****************************************************************************
** Form implementation generated from reading ui file 'formtest.ui'
**
** Created: Thu May 21 20:31:05 2009
** by: The User Interface Compiler (uic)
**
** WARNING! All changes made in this file will be lost!
****************************************************************************/
#include "formtest.h"
#include <qpushbutton.h>
#include <qlayout.h>
#include <qvariant.h>
#include <qtooltip.h>
#include <qwhatsthis.h>
/*
* Constructs a First which is a child of 'parent', with the
* name 'name' and widget flags set to 'f'
*/
First::First( QWidget* parent, const char* name, WFlags fl )
: QWidget( parent, name, fl )
{
if ( !name )
setName( "First" );
resize( 400, 400 );
setMaximumSize( QSize( 400, 400 ) );
setCaption( tr( "first" ) );
OKButton = new QPushButton( this, "OKButton" );
OKButton->setGeometry( QRect( 140, 70, 70, 40 ) );
OKButton->setText( tr( "OK" ) );
connect(OKButton, SIGNAL( clicked() ), this, SLOT( displayForm2( ) ) );
}
/*
* Destroys the object and frees any allocated resources
*/
First::~First()
{
// no need to delete child widgets, Qt does it all for us
}
void First::displayForm2( )
{
this->close();
secondForm.show();
}
