[Qt练习]QCombox

 

#include <QApplication>#include <QWidget>#include <QLabel>#include <QComboBox>#include <QVBoxLayout>#include <QIcon>int main(int argc, char**argv){    QApplication app(argc, argv);    QWidget *widget = new QWidget;    widget->setWindowTitle("Combox");    widget->resize(300,200);    QComboBox *combox = new QComboBox;    combox->setEditable(true);    combox->insertItem(0,QIcon("1.jpg"),"1");    combox->insertItem(1,QIcon("2.jpg"),"2");    combox->insertItem(2,QIcon("3.png"),"3");    combox->insertItem(3,QIcon("4.png"),"4");    QLabel *label = new QLabel("QCombox");    QVBoxLayout *layout = new QVBoxLayout;    layout->addWidget(combox);    layout->addWidget(label);    QObject::connect(combox,SIGNAL(activated(QString)),label, SLOT(setText(QString)));    widget->setLayout(layout);    widget->show();    return app.exec();}