cocos2dx中无法将字符串变量传递给Sprite

Unable to pass the string variable to Sprite in cocos2dx

我对 cocos2dx 和 C++ 中的字符串有疑问。我想将变量背景传递给 Sprite::create(background) 但是,我收到错误消息。如果它在 java 中,则以下代码将起作用,但由于我不习惯 C++,它可能会有所不同。另外,如果它是一个整数,我将如何传递它?我将如何解决这个问题?一些提示或示例会很棒!我很乐意听取您的意见!

void GameLayer::initBackground()
{
    UserDefault *_userDef = UserDefault::getInstance();
    //int型
    auto _int =_userDef->getIntegerForKey("back");
    auto string  background = "Background1.png";
    if (_int == 0) {
       background = "Background2.png";
    } 
    auto bgForCharacter = Sprite::create(background);
    bgForCharacter->setAnchorPoint(Point(0, 1));
    bgForCharacter->setPosition(Point(0, WINSIZE.height));
    addChild(bgForCharacter, ZOrder::BgForCharacter);

    auto bgForPuzzle = Sprite::create("Background2.png");
    bgForPuzzle->setAnchorPoint(Point::ZERO);
    bgForPuzzle->setPosition(Point::ZERO);
    addChild(bgForPuzzle, ZOrder::BgForPuzzle);
}
auto userDefault=UserDefault::getInstance();

int value=userDefault->getIntegerForKey("back"); //find value for back if exist then it return that value else return 0

auto sprite = Sprite::create(value==0?"Background2.png":"Background1.png");
sprite->setPosition(100, 100);
this->addChild(sprite, 0);

当您想更改背景时,只需输入任何值而不是 0

UserDefault::getInstance()->setIntegerForKey("back", 1);