两部分代码比较,所带来的问题,下面已解决
// position the label on the center of the screen // bg->setPosition(Vec2(origin.x + visibleSize.width / 2, // origin.y + visibleSize.height / 2)); // this->addChild(bg); <span style="color:#ff0000;">auto bg = Sprite::create("background.png"); bg->setPosition(Vec2(visibleSize.width / 2, visibleSize.height / 2));</span> <span style="color:#ff0000;background-color: rgb(204, 204, 204);"> this->addChild(bg);</span>
能正常显示!!