//建立一個scroolview
    ui::ScrollView* scrollView = ui::ScrollView::create();
    scrollView->setBounceEnabled(true);
    //移動的方向是任意方向
    scrollView->setDirection(ui::ScrollView::Direction::BOTH);
    //scrollview的大小
    scrollView->setSize(Size(500.0f, 500.0f));
    scrollView->setPosition(Vec2(100, 100));
    addChild(scrollView);
    
    //建立一個精靈放到scrollview裡面
    auto sp = Sprite::create("card_bg_big_26.jpg");
    sp->setAnchorPoint(Vec2(0, 0));
    sp->setPosition(Vec2(20, 30));
    
    float innerWidth = scrollView->getSize().width + sp->getContentSize().width;
    float innerHeight = scrollView->getSize().height + sp->getContentSize().height;
    //設定scrollview的內部容器大小
    scrollView->setInnerContainerSize(Size(innerWidth, innerHeight));