namespace Lesson7_List练习
{
    #region 第二题
    abstract class Monster
    {
        public static List<Monster> monsters = new List<Monster>();
        public Monster()
        {
            monsters.Add(this);
        }

        public abstract void Atk();
    }
    class Boss: Monster
    {

        public override void Atk()
        {
            Console.WriteLine("Boss攻击");
        }
    }
    class Goblin : Monster
    {

        public override void Atk()
        {
            Console.WriteLine("哥布林攻击");
        }
    }
    #endregion
    class Program
    {
        static void Main(string[] args)
        {
            #region 第一题
            List<int> l1 = new List<int>();
            for (int i = 10; i > 0; i--)
            {
                l1.Add(i);
            }
            l1.RemoveAt(4);
            for (int i = 0; i < l1.Count; i++)
            {
                Console.WriteLine(l1[i]);
            }
            Console.WriteLine("_______________________________");
            #endregion

            #region 第二题
            Monster m1 = new Boss();
            Monster m2 = new Goblin();

            Boss b = new Boss();
            Goblin g = new Goblin();
            for (int i = 0;i < Monster.monsters.Count;i++)
            {
                Monster.monsters[i].Atk();
            }
            #endregion
        }
    }
}