调用另一个类的标签不显示怎么办呀

Studio
#1

MLabel.cpp

void MLabel::question()
{
int rand = CCRANDOM_0_1() * 10;
Label* label = Label::create(“this”, “fonts\Marker Felt.ttf”, 24);
label->setPosition(Vec2(240, 380));
this->addChild(label,2);
}

MainGame.cpp
bool MainGame::init()
{
if (!Layer::init())
return false;

auto mlabel = MLabel::create();
mlabel->question();
}

显示的还是原来那些东西 不显示这行标签啊~~~~

跪求大神啊 5555555555555

PS:求别回答什么AppDelegate.cpp更换create前面的类名这种占篇幅的……

#2

没见到MainGame添加到scene
没见到MLabel添加到添加到MainGame

MainGame->addChild(MLabel)
Director::getInstance()->getRunningScene()->addChild(MainGame)