QT小程序：利用QGraphicsScene和QGraphicsView进行显示操作

#include <QApplication>

#include <qgraphicsview>

#include <QGraphicsScene>

#include <QGraphicsRectItem>

#include <QGraphicsPixmapItem>

#include <QString>

int main(int argc, char *argv[])

{

    QApplication a(argc, argv);

    QGraphicsPixmapItem*  myPix = new QGraphicsPixmapItem();

    //myPix->setPixmap(QString(":/timg.jpg"));

    myPix->setPixmap(QPixmap(":/timg.jpg"));

   

    QGraphicsRectItem* myRect = new QGraphicsRectItem();

    myRect->setRect(0, 0, 100, 100);

    myRect->setPos(200, 600);

    QGraphicsScene* scene = new QGraphicsScene();

    scene->addItem(myRect);

    scene->addItem(myPix);

    QGraphicsView* view = new QGraphicsView(scene);

    view->setFixedSize(600, 800);

    view->show();

    return a.exec();

}