cocos2d-x场景切换

auto director = Director::getInstance();
    auto selectServerS = SelectServer::createScene();
    auto transition = TransitionJumpZoom::create(1.0f,selectServerS);

    //1.replaceScene：上一个场景的状态不会被保存
    //director->replaceScene(transition);

    //2.pushScene：上一个场景的状态依然保存(占内存)；返回的时候不能自定义动画效果
    director->pushScene(transition);

    //pushScene切换，popScene返回上一个界面。
    //auto director = Director::getInstance();
    //director->popScene();