摘要: abstract修饰符 1.语法 例子: package day11; public class TestShape { public static void main(String[] args) { Shape s1 = new Rect(4, 2); Shape s2 = new Circle 阅读全文
posted @ 2020-10-09 21:48 SpringChuXin 阅读(187) 评论(0) 推荐(0) 编辑