cocos2d ccease 运动中的加速度

　　 CCSpriteFrameCache* spriteCache=CCSpriteFrameCache::sharedSpriteFrameCache();
    spriteCache->addSpriteFramesWithFile("girls.plist");
    
    CCSprite* sp=CCSprite::createWithSpriteFrameName("s_1.png");
    sp->setPosition(ccp(size.height*0.2,size.height/2));
    sp->setScale(0);
    this->addChild(sp);

    //移动的例子
    //sp->runAction(CCEaseBounceIn::create(CCMoveTo::create(3,ccp(size.width*0.8,size.height/2))));

    sp->runAction(CCEaseElasticInOut::create(CCScaleTo::create(2,1)));

    //掉落的例子
    /*sp->setPosition(ccp(size.height,size.height+sp->getContentSize().height/2));
    sp->setScale(1);
    sp->runAction(CCEaseElasticOut::create(CCMoveTo::create(1,ccp(size.width/2,size.height/2))));
    */