super理解为 父类的
super可以调用属性、方法、构造器
package exer; public class SuperTest { public static void main(String[] args) { Student s=new Student(); s.show(); s.eat(); } } class Person{ String name; Person(){ this.name="张三"; } public void eat(){ System.out.println("人:吃饭"); } } class Student extends Person{ int score; Student(){ super(); this.score=100; } public void eat(){ System.out.println("学生:吃饭!"); super.eat(); } public void study(){ System.out.println("学生:学习"); } public void show(){ System.out.println(super.name+"的成绩是"+this.score); } }