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编写一个Person类，包括属性（name、age），有参构造器、方法say(返回自我介绍的字符串）。 编写一个Student类，继承Person类，增加sno、score属性，以及有参构造器，在子类中调用父类的构造器。编写一个方法showInfo(返回自我介绍的字符串）。

public class Person1 {
	private String name;
	private int age;

	public Person1(String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public String say() {
		return "我叫" + name + "，我今年" + age + "岁了，";
	}
	
	public static void main(String[] args) {
		Student s=new Student("camila",20,17111107,100);
		System.out.println(s.showInfo());
	}
}

class Student extends Person1 {
	private int sno;
	private int score;

	public Student(String name, int age, int sno, int score) {
		super(name, age);
		this.sno = sno;
		this.score = score;
	}

	public int getSno() {
		return sno;
	}

	public void setSno(int sno) {
		this.sno = sno;
	}

	public int getScore() {
		return score;
	}

	public void setScore(int score) {
		this.score = score;
	}

	public String showInfo() {
		return say()+"我的学号是：" + sno + "，我的分数是：" + score;
	}
		
}