cocos2d-x -- removeChild

Test5::Test5()
{
    CCSprite* sp1 = CCSprite::create(s_pPathSister1);
    CCSprite* sp2 = CCSprite::create(s_pPathSister2);

    sp1->setPosition(ccp(,));
    sp2->setPosition(ccp(,));

    CCRotateBy* rot = CCRotateBy::create(, );
    CCActionInterval* rot_back = rot->reverse();
    CCAction* forever = CCRepeatForever::create(
                                                    (CCActionInterval*)(CCSequence::create(rot, rot_back, NULL))
                                                );
    CCAction* forever2 = (CCAction*)(forever->copy()->autorelease());
    forever->setTag();
    forever2->setTag();

    addChild(sp1, , kTagSprite1);
    addChild(sp2, , kTagSprite2);

    sp1->runAction(forever);
    sp2->runAction(forever2);

    schedule( schedule_selector(Test5::addAndRemove), 2.0f);
}

void Test5::addAndRemove(float dt)
{
    CCNode* sp1 = getChildByTag(kTagSprite1);
    CCNode* sp2 = getChildByTag(kTagSprite2);
//这里需要对计数加一，否则removeChild的时候会被释放掉
    sp1->retain();
    sp2->retain();
    //false是表示不删除该节点的动作，true表示删除
    removeChild(sp1, false);
    removeChild(sp2, true);
    //重新加载到层中
    addChild(sp1, , kTagSprite1);
    addChild(sp2, , kTagSprite2);

    sp1->release();
    sp2->release();
}