【cocos2d-x】无限重复动作-新手引导箭头上下移动

CCSprite *arrow = CCSprite::createWithSpriteFrameName("ug_arrow");
if (arrow)
{
    arrow->setAnchorPoint(info.arPoint);
    arrow->setPosition(ccp(info.centerPos.x, info.centerPos.y+80));
    this->addChild(arrow, 10);

    // TODO：让箭头重复上下移动
    CCMoveBy *move = CCMoveBy::create(0.3f, ccp(0, 10));
    arrow->runAction(CCRepeatForever::create(static_cast<CCSequence *>(CCSequence::create(move, move->reverse(), NULL))));
}