摘要: package lijun.cn.demo4; public class Person { int num =777; public Person(){ System.out.println("父类的构造方法"); num=666; } } package lijun.cn.demo4; // 子类 super() ... 阅读全文
posted @ 2019-03-16 16:40 芯-觞 阅读(148) 评论(0) 推荐(0) 编辑