bool HelloWorld::init(){  bool bRet = false;  do  {		//ccc4這個宏的參數分別為R,G,B,A最后一個是透明度，設置成255就是不透明的，設置成0是透明的		CC_BREAK_IF(!CCLayerColor::initWithColor(ccc4(128,128,128,255)));		CCSize size = CCDirector::sharedDirector()->getWinSize();    CCSprite * sprite = CCSprite::create("image1.png");		sprite->setPosition(ccp(100,100));		this->addChild(sprite);		//新建一個colorlayer		ccColor4B color = ccc4(200,200,0,255);		CCLayerColor * layer = CCLayerColor::create(color);		//設置layer層的大小		layer->setContentSize(CCSizeMake(200,200));		//這一步使layer層的錨點為(0.5,0.5)，若不怎么設置，默認錨點在(0,0)處		layer->ignoreAnchorPointForPosition(false);		layer->setPosition(ccp(size.width/2,size.height/2));		this->addChild(layer);    bRet = true;  } while (0);  return bRet;}