定义一个精灵的时候
auto label = Label::creatWithTTF("cocos\n2dx","MarkerFelt.ttf",80,Size::ZERO,TextHAlignment::LEFT);
里面的Size::ZERO是表示的什么意思
auto label = Label::creatWithTTF("cocos\n2dx","MarkerFelt.ttf",80,Size::ZERO,TextHAlignment::LEFT);
里面的Size::ZERO是表示的什么意思