读写默认配置文件：

UserDefault::getInstance()->setStringForKey("data","Hello lidaha!");

    CCLOG("%s",UserDefault::getInstance()->getStringForKey("data.ini","Hello World"));

读写文件：

auto fu @H_502_28@= FileUtils::getInstance();

    CCLOG("%s",fu@H_502_28@->getWritablePath());  //获取允许操作的目录

    //打开文件
    FILE @H_502_28@*fp @H_502_28@= fopen(fu@H_502_28@->fullPathFromRelativeFile("data.txt",fu@H_502_28@->getWritablePath()).c_str(),"w");

    fprintf(fp,"Hello Lidaha!\n");

    fclose(fp);
    //读取文件数据
    auto dt @H_502_28@= fu@H_502_28@->getDataFromFile(fu@H_502_28@->fullPathFromRelativeFile("data.txt",fu@H_502_28@->getWritablePath()));

    CCLOG("%s",dt.getBytes());