摘要: 例子1:class A { val x1: String = "hello" val x2: String = "mom" println("A: x1=" + x1 + ",x2=" + x2)}class B extends A { override val x2: String = "... 阅读全文
posted @ 2015-08-02 15:58 tinylcy 阅读(430) 评论(0) 推荐(0) 编辑