1.cocos2d CCLayer 的创建

//创建Layer    //1.默认颜色    CCLayer *myLayer=CCLayer::create();    myLabel->setPosition(ccp(200, 30));    this->addChild(myLayer);        //2.红色 带颜色    CCLayerColor *myLayer2=CCLayerColor::create(ccc4(255, 0,0 ,255));    this->addChild(myLayer2);    myLayer2->setContentSize(CCSize(250, 200));        //3.蓝色    CCLayerColor *myLayerColor=CCLayerColor::create(ccc4(0, 0, 255, 255), 150, 150);    this->addChild(myLayerColor);