?Player p1 = new Player(2000, "張三", 20, 2, 100);

??????Player p2 = new Player(2001, "李四", 50, 1, 100);

??????Console.WriteLine(p1.atk);

??????p1.showInfos();

??????p2.showInfos();

??????p1.minusHp(p2.atk);

?public class Player

??{

????public int id;

????public string name;

????public int atk;

????public int def;

????public int hp;

????public Player(int id,string name,int atk,int def,int hp)

????{

????}

????public void?minusHp(int atk)

????{

??????int dmg = atk - def;

??????hp=hp-dmg;

??????Console.WriteLine(hp);

????}

????public void showInfos()

????{

??????string info = "";

??????info = info + "名字：" + name + "\n";?

??????info = info + "id：" + id + "\n";

??????info = info + "攻擊力：" + atk + "\n";

??????info = info + "防御力：" + def + "\n";

??????info = info + "血量：" + hp + "\n";

??????Console.WriteLine(info);

????}

??}

但實(shí)際打印出來的全部是0.這是為啥。。