摘要： 转自http://yongshengfree.blog.163.com/blog/static/3525246520081023255997/刚开始以为头文件语法写错了 经常碰到，记录一下不过在查阅网上资料的时候也意外的收获了一些答案, 在此把它贴出来, 以示警醒:You can get the errorexpected class-name before ‘{’ tokenif you try to define a class as a subclass, and the superclass isn't defined in the local scope.WRONG clas 阅读全文