游戏玩家（名称，生命值，等级），坦克，大兵类，玩家之间可以相互攻击，大兵拥有武器，用枪弹和反坦克炮弹，造成攻击不同，坦克攻击值固定，请设计玩家互相攻击的过程,实现坦克A大兵，大兵打坦克，大兵用枪打坦克，大兵用反坦克导弹打坦克。

大兵被坦克攻击了，从200到0
坦克被反坦克炮弹攻击了，从1000到500
坦克被手枪攻击了，从500到400

package com;

public class Tank extends Player{

	public Tank() {
			this.setName("坦克");
			this.setBlood(1000);
			this.setAtackvalue(200);
	}
	
}

package com;

public class Soldier extends Player {

	private Weapon wp;
	
	public Soldier() {
		this.setName("大兵");
		this.setAtackvalue(20);
		this.setBlood(200);
		
	}
	
	public void setWeapon(Weapon wp ) {
		
		this.wp=wp;
	}
	
	public void fire(Player target) {
	
		if(wp==null) {
			
			int blood0,blood;
			blood0=target.getBlood();
			blood=blood0-this.getAtackvalue();
			target.setBlood(blood);
			System.out.println(target.getName()+"被"+this.getName()+"攻击了，从"+blood0+"到"+target.getBlood());
			
			
		}
		else {			
			wp.fire(target);
		}
	}
	
	
}

package com;

public class Player {

	private String name; // 名称
	private int blood ; // 生命值
	private int level; // 等级默认为1，所有输出值为等级x数值
	private int atackvalue;  //攻击值
	
	public int getAtackvalue() {
		return atackvalue;
	}
	public void setAtackvalue(int atackvalue) {
		this.atackvalue = atackvalue;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getBlood() {
		return blood;
	}
	public void setBlood(int blood) {
		this.blood = blood;
	}
	public int getLevel() {
		return level;
	}
	public void setLevel(int level) {
		this.level = level;
	}
	
	public void fire(Player target) {
		int blood,blood0;
		blood0=target.getBlood();
		blood =blood0 - this.getAtackvalue();
		target.setBlood(blood);
        System.out.println(target.getName()+"被"+this.getName()+"攻击了，从"+blood0+"到"+target.getBlood());
	}
	
	
	

}

package com;

public  class Weapon {
	private String name ; //武器名称
	private  int atackvalue;  //攻击值
		
	public String getName() {
		return name;
	}

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

	public int getAtackvalue() {
		return atackvalue;
	}

	public void setAtackvalue(int atackvalue) {
		this.atackvalue = atackvalue;
	}

	public void fire(Player target) {
		int blood0,blood;
		blood0=target.getBlood();
		blood =blood0  - this.getAtackvalue();
		target.setBlood(blood);

		System.out.println(target.getName()+"被"+this.getName()+"攻击了，从"+blood0+"到"+target.getBlood());
	}



	
}

package com;

public class Bullet extends Weapon {

	public Bullet() {

		this.setAtackvalue(100);
		this.setName("手枪");
	}




}

package com;

public class Shell extends Weapon {

	public Shell() {

		this.setAtackvalue(500);
		this.setName("反坦克炮弹");
	}


	
	
	

}

package com;

public class Test {

	public static void main(String[] args) {
		 	
      Tank tk=new Tank();
      Soldier s=new Soldier();
      tk.fire(s);
      
      Soldier s2=new Soldier();
      Shell shell=new Shell();
      s2.setWeapon(shell);
      s2.fire(tk);
      Bullet bl=new Bullet();
      s2.setWeapon(bl);
      s2.fire(tk);

		
		
	}

}