namespace Lesson9_封装_拓展方法练习
{
    static class Tools
    {
        public static int IntSqrt(this int i)
        {
            return i*i;
        }
        public static void Suicide(this player p)
        {
            Console.WriteLine("{0}自杀了",p.name);
        }
    }
    class player
    {
        public string name;
        public int hp, atk, def;
        public player()
        {
            name = "null";
            hp = 0;
            atk = 0;
            def = 0;
        }
        public player(string name,int hp,int atk,int def)
        {
            this.name =name;
            this.hp = hp;
            this.atk = atk;
            this.def = def;
        }
        public void Attack() 
        {
            Console.WriteLine("{0}攻击了，攻击值{1}",name,atk);
        }
        public void Defense() 
        { 
            Console.WriteLine("{0}防御了，防御值{1}",name,def); 
        }
        public void Move() 
        {
            Console.WriteLine("{0}移动了",name);
        }
        public void GetHurt() 
        {
            Console.WriteLine("{0}受伤了,剩余{1}hp",name,hp);
        }
    }
    internal class Program
    {
        static void Main(string[] args)
        {
            player p = new player();
            p.Attack();
            p.Defense();
            p.Move();
            p.GetHurt();
            p.Suicide();
            player p2 = new player("HK",100,100,100);
            p2.Attack();
            p2.Defense();
            p2.Move();
            p2.GetHurt();
            p2.Suicide();
        }
    }
}