部分代码
CCLabelAtlas * labelSec =CCLabelAtlas::create("00","Themes/Number/common_num_yellow_20.png",20,30,'0');
labelSec->setAnchorPoint(ccp(0.5,0.5));
labelSec->setPosition(ccp(229,45));
labelSec->setTag(TAG_LABEL_SECOND);
pSpriteItem->addChild(labelSec);
pSpriteItem->setCascadeOpacityEnabled(true);//参数为true，则子类随父类变化而变化 原文链接：https://www.f2er.com/cocos2dx/338444.html