求帮助对C++的类的概念不是很理解 不会用（有一家饭馆，来了一个人吃肉

/*----------------------------
有一家饭馆，来了一个人吃肉(这个人又可能是汉族人，满族人，回族人等)，肉(猪肉，牛肉，狗肉，腊狗肉，扣肉等)，因为风俗习惯的不同，

汉族人什么都吃
满族人不吃狗肉，其他都吃
回族人不吃猪肉，狗肉。其他都吃

这个人(如果是满族人)就想判断这个肉是否是他们符合他们的习惯。

肉里加一个  湖南腊狗肉
湖南人    只吃 湖南腊狗肉
----------------------------*/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace test1
{
    class Program
    {
        // 肉类字典
        protected static Dictionary<Int32, String> Meats = new Dictionary<Int32, String>()
        {
            { 1, "猪肉" },
            { 2, "牛肉" },
            { 3, "狗肉" },
            { 4, "腊狗肉" },
            { 5, "扣肉" }
        };

        // 人类（抽象类）
        protected abstract class Person
        {
            // 种族属性
            private String _ethnicity = "";
            public virtual String Ethnicity
            {
                get { return _ethnicity; }
            }

            // 地域属性
            public String Province { get; set; }

            // 禁忌
            public abstract Boolean is_taboo(Int32 meatID);
        };

        // 汉族
        protected class Han_Chinese : Person
        {
            public override String Ethnicity
            {
                get { return "汉族"; }
            }

            public override Boolean is_taboo(Int32 meatID)
            {
                return (Province != "湖南人") ? false : (meatID != 4);
            }
        }

        // 满族
        protected class ManChu_Chinese : Person
        {
            public override String Ethnicity
            {
                get { return "满族"; }
            }

            // 肉类禁忌：狗肉
            private static Int32[] meat_taboo = { 3 };

            public override Boolean is_taboo(Int32 meatID)
            {
                return meat_taboo.Contains(meatID);
            }
        }

        // 回族
        protected class Hui_Chinese : Person
        {
            public override String Ethnicity
            {
                get { return "回族"; }
            }

            // 肉类禁忌：猪肉、狗肉
            private static Int32[] meat_taboo = { 1, 3 };

            public override Boolean is_taboo(Int32 meatID)
            {
                return meat_taboo.Contains(meatID);
            }
        }

        static void Main(string[] args)
        {
            Person[] persons = new Person[4]
            {
                new Hui_Chinese(),
                new ManChu_Chinese(),
                new Han_Chinese(),
                new Han_Chinese() { Province = "湖南人" }
            };

            Int32 meatID = 1;
            Console.WriteLine("提供{0}\n", Meats[meatID]);

            foreach (Person p in persons)
            {
                Console.Write("[{0}] ", p.Ethnicity);
                if (p.is_taboo(meatID))
                {
                    Console.WriteLine("对不起，我是{0}，不吃{1}。", String.IsNullOrEmpty(p.Province) ? p.Ethnicity : p.Province, Meats[meatID]);
                }
                else
                {
                    Console.WriteLine("谢谢！");
                }
            }

            Console.WriteLine("\n按Enter键结束程序...");
            Console.ReadLine();
        }
    }
}