//   CCNode 的添加 与tag//    1 添加子类函数     //    CCLayer*layer =CCLayer::create();//    layer->setPosition(ccp(240,200));//    CCSprite*sprChild = CCSprite::create("Icon.png");//    layer->addChild(sprChild);//    addChild(layer);////    CCSprite* spr = CCSprite::create("Icon.png");//    spr->setPosition(ccp(100,100));//    CCLayerColor* layerChild = CCLayerColor::create(ccc4(255, 0, 0, 255),50,50);//    spr->addChild(layerChild);//    addChild(spr);    //－－－－－－Tag的作用与使用//    CCSprite* spY = CCSprite::create("Icon.png");//    spY->setPosition(ccp(100,200));//    addChild(spY);//////    CCSprite * spr11 = CCSprite::create("Icon.png");//    spr11->setPosition(ccp(200,200));//    addChild(spr11,0,823);//    this->testSprite();        //－－－－－－－坐标系//    CCSprite * spr =CCSprite::create("Icon.png");//    spr->setPosition(ccp(100,100));//    addChild(spr);////    CCSprite*spr2 = CCSprite::create("Icon.png");//    spr2->setPosition(ccp(200,200));//    addChild(spr2);//    //－－－－－－－锚点//    CCSprite* sp1 = CCSprite::create("Icon.png");//    addChild(sp1);//  // sp1->setAnchorPoint(ccp(0,0));//     sp1->setPosition(ccp(sp1->getContentSize().width*0.5,sp1->getContentSize().height*0.5));//    return true;                //    //layer 默认充满屏幕//    CCLayerColor* layer = CCLayerColor::create(ccc4(255, 0, 0, 255));//    addChild(layer);//    CCLOG("%f,%f",layer->getAnchorPoint().x,layer->getAnchorPoint().y);//    CCLOG("%f,%f",layer->getPositionX(),layer->getPositionY());//    CCLOG("%f,%f",layer->getContentSize().width,layer->getContentSize().height);        //－－－－－－－Z轴与遮盖关系        CCSprite* spA1 =CCSprite::create("Icon.png");    spA1->setPosition(ccp(150,200));    addChild(spA1);    CCSprite* spA2 =CCSprite::create("Icon.png");    spA2->setPosition(ccp(100,200));    spA2->setScale(2);    addChild(spA2);    CCSprite* spB1 =CCSprite::create("Icon.png");    spB1->setPosition(ccp(380,140));    addChild(spB1,1);    CCSprite* spB2 =CCSprite::create("Icon.png");    spB2->setPosition(ccp(330,140));    spB2->setScale(2);    addChild(spB2);