摘要： 1 public class Fu { 2 3 int num = 10; 4 5 } 1 public class Zi extends Fu { 2 3 int num = 20; 4 5 public void method() { 6 int num = 30; 7 System.out.p 阅读全文

摘要： 1 public class Fu { 2 int numFu=10; 3 4 int num=100; 5 6 public void methodFu(){ 7 System.out.println(num); 8 } 9 } 1 public class Zi extends Fu { 2 3 阅读全文