目录创建一个应用pom.XML引入依赖解决方案清理maven和idea缓存下面是官方提供的demo总结
I\'ve got a couple of Core Data-gene开发者_如何学运维rated class files that I\'d like to add custom methods to. I don\'t need to add any instance variables. How can I do this?
加载中,请稍侯......