错误 exited with code -1073741819
小弟实在不知道是为什么，GOOGLE 了很久
#include <QtGui/QApplication>
#include "lcdrange.h"
#include <QPushButton>
#include <QGridLayout>
#include <QFont>
class MyWidget : public QWidget
{
public:
MyWidget( QWidget *parent=0 );
};
MyWidget::MyWidget( QWidget *parent )
: QWidget( parent )
{
QPushButton *quit = new QPushButton("Quit",this);
quit->setFont(QFont("Times",18,QFont::Bold));
connect(quit,SIGNAL(clicked()),
qApp,SLOT(quit()));
QGridLayout *layout = new QGridLayout(this);
LCDRange *previous = 0 ;
for( int r = 0;r < 4; r++){
for( int c = 0;c < 4;c++){
LCDRange *lr = new LCDRange(this);
layout->addWidget(lr,r,c);
if(previous)
{
connect(lr,SIGNAL(valueChanged(int)),
previous,SLOT(setValue(int)));
previous = lr;
}
}
}
layout->addWidget(quit,4,0,1,4);
}
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MyWidget w;
w.show();
return a.exec();
}
