摘要: public interface Icolor{ int apply(int x,int y); } public enum color implements Icolor{ plus("+"){ public int apply(int x,int y){ return x+y;... 阅读全文
posted @ 2017-06-22 10:59 甜菜波波 阅读(9796) 评论(0) 推荐(0) 编辑