摘要: title:重载equals方法要遵循的一般约定 Each instance of the class is inherently unique 实例存在主键 You don't care whether the class provides a "logical equality" test. s 阅读全文
posted @ 2016-05-26 18:35 郁闷紫番薯 阅读(203) 评论(0) 推荐(0) 编辑