cocos2dx的CCSequence与CCRepeatForever的混用

想写个简单的动画，让一个按钮，缩大、还原，不停的在那闪烁

1:

   2: CCActionInterval* scaleAction1 = CCScaleTo::create(0.3f, 1.1f, 1.1f);

   3: CCActionInterval* scaleAction2 = CCScaleTo::create(0.3f, 1.0f, 1.0f);

4:

先放大再还原，然后不停的repeat…

1:

   2: CCActionInterval* seq = (CCActionInterval*)(CCSequence::create(scaleAction1, scaleAction2, NULL));

   3: CCActionInterval* rep = CCRepeatForever::actionWithAction(seq);

4:

ccsprite->runAction(req);

附一张CCAction类及其子类的结构图：