c#编程题目 高手进

常见的数据结构。。。。

效果图：

上代码：

class Program
    {
        
        static void Main(string[] args)
        {
            List data = new List();
            while (true) {
                Console.WriteLine("请输入数据编号");
                string _id = Console.ReadLine();
                long sid = -1;
                long.TryParse(_id, out sid);
                while (sid < 0) {
                    Console.WriteLine("错误编号必须大于零，请重新输入数据编号");
                    _id = Console.ReadLine();
                    long.TryParse(_id, out sid);
                }
                if (data.Count > 0) {
                    while (data.Any(s => s.ID == sid))
                    {
                        Console.WriteLine("错误编号,与其他信息重复，请重新输入数据编号");
                        _id = Console.ReadLine();
                        long.TryParse(_id, out sid);
                    }
                }
                Console.WriteLine("请输入数据名称");
                string _name = Console.ReadLine();
                while (string.IsNullOrWhiteSpace(_name) )
                {
                    Console.WriteLine("数据名称不能为空，请重新输入数据名称");
                    _name = Console.ReadLine();
                }
                Console.WriteLine("请输入数据类别(单个英文字母) M/B/C  资料/图书/CD光盘");
                ConsoleKeyInfo ikey = Console.ReadKey();
                while ( !(ikey.Key == ConsoleKey.M || ikey.Key == ConsoleKey.B || ikey.Key == ConsoleKey.C))
                {
                    Console.WriteLine("输入错误");
                    Console.WriteLine("请输入数据类别(单个英文字母) M/B/C  资料/图书/CD光盘");
                    ikey = Console.ReadKey();
                }
                Console.WriteLine("请输入创建时间,不输入为当前系统时间");
                string _crimte = Console.ReadLine();
                DateTime scrtime = DateTime.Now;
                if (!string.IsNullOrWhiteSpace(_crimte)) {
                    while (!DateTime.TryParse(_crimte, out scrtime)) {
                        Console.WriteLine("时间格式无法解析,请重新尝试");
                        _crimte = Console.ReadLine();
                    }
                }
                if (ikey.Key == ConsoleKey.M)
                {
                    data.Add(new Material(sid, _name,"资料", scrtime));
                }
                else if (ikey.Key == ConsoleKey.B)
                {
                    Console.WriteLine("请输入图书作者");
                    string _author = Console.ReadLine();
                    while (string.IsNullOrWhiteSpace(_author))
                    {
                        Console.WriteLine("图书作者不能为空，请重新输入作者");
                        _author = Console.ReadLine();
                    }
                    Console.WriteLine("请输入图书售价");
                    string _price = Console.ReadLine();
                    while (string.IsNullOrWhiteSpace(_price))
                    {
                        Console.WriteLine("图书售价不能为空，请重新输入售价");
                        _price = Console.ReadLine();
                    }
                    decimal _priced = 0;
                    while (!decimal.TryParse(_price,out _priced) || _priced<0)
                    {
                        Console.WriteLine("图书售价非法，不能小于等于0，请重新输入售价");
                        _price = Console.ReadLine();
                    }
                    data.Add(new Book(sid, _name, "图书", scrtime, _author,_priced));
                }
                else if (ikey.Key == ConsoleKey.C)
                {
                    Console.WriteLine("请输入光盘发行者");
                    string _publiser = Console.ReadLine();
                    while (string.IsNullOrWhiteSpace(_publiser))
                    {
                        Console.WriteLine("光盘发行者不能为空，请重新输入光盘发行者");
                        _publiser = Console.ReadLine();
                    }
                    Console.WriteLine("请输入光盘容量");
                    string _captistr = Console.ReadLine();
                    while (string.IsNullOrWhiteSpace(_captistr))
                    {
                        Console.WriteLine("光盘容量不能为空，请重新输入光盘容量");
                        _captistr = Console.ReadLine();
                    }
                    double _capti = 0;
                    while (!double.TryParse(_captistr, out _capti) || _capti < 0)
                    {
                        Console.WriteLine("光盘容量非法，不能小于等于0，请重新输入光盘容量");
                        _captistr = Console.ReadLine();
                    }
                    data.Add(new Cdroom(sid, _name, "光盘", scrtime, _publiser, _capti));
                }
                else {
                    Console.WriteLine("意外的资料类别无法继续， 按任意键退出程序");
                    Console.ReadKey();
                    return;
                }
                Console.WriteLine("这个资料输入完毕，按E结束录入，其他继续录入");
                var ife = Console.ReadKey();
                if (ife.Key == ConsoleKey.E) {
                    break;
                }
            }
            foreach (var mitem in data) {
                Console.WriteLine( mitem.Show("Chinese"));
            }
            Console.ReadKey();
        }
    }
    public class Material
    {
        protected Material()
        {
        }
        public Material(long id,string name, string type) {
            ID = id;
            Name = name;
            Type = type;
            CrTime = DateTime.Now;
        }
        public Material(long id, string name, string type,DateTime crtime)
        {
            ID = id;
            Name = name;
            Type = type;
            CrTime = crtime;
        }
        public long ID;
        public string Name;
        public string Type;
        public DateTime CrTime;
        public new string GetType() {
            return this.Type;
        }
        public virtual string Show()
        {
            return "ID:" + ID.ToString() + "Name:" + Name + "Type:" + Type + "CrTime:" + CrTime.ToString() ;
        }
        public virtual string Show(string language) {
            switch (language) {
                case "Chinese": {
                        return "编号:" + ID.ToString() + "名称:" + Name + "属性:" + Type + "创建时间:" + CrTime.ToString();
                    }
                default: return this.Show();
            }
        }
    }
    public class Book : Material {
        public Book():base() {
        }
        public Book(long id, string name, string type) : base( id,  name,  type) { }
        public Book(long id, string name, string type, DateTime crtime) : base(id, name, type, crtime) { }
        public Book(long id, string name, string type, DateTime crtime,string author,decimal price) : base(id, name, type, crtime) {
            Author = author;
            Price = price;
        }
        public decimal GetPrice() {
            return this.Price;
        }
        public override string Show()
        {
            return "ID:" + ID.ToString() + "Name:" + Name + "Type:" + Type + "CrTime:" + CrTime.ToString() + "Author:" + Author + "Price:" + Price.ToString();
        }
        public override string Show(string language)
        {
            switch (language)
            {
                case "Chinese":
                    {
                        return "编号:" + ID.ToString() + "名称:" + Name + "属性:" + Type + "创建时间:" + CrTime.ToString() + "作者:" + Author + "价格:" + Price.ToString();
                    }
                default: return this.Show();
            }
        }
        public string Author;
        public decimal Price;
    }
    public class Cdroom : Material
    {
        public Cdroom() : base()
        {
        }
        public Cdroom(long id, string name, string type) : base(id, name, type) { }
        public Cdroom(long id, string name, string type, DateTime crtime) : base(id, name, type, crtime) { }
        public Cdroom(long id, string name, string type, DateTime crtime, string publisher, double capacity) : base(id, name, type, crtime)
        {
            Publisher = publisher;
            Capacity = capacity;
        }
        //getPrice和显示全部成员变量的函数show。
        public double GetCapacity()
        {
            return this.Capacity;
        }
        public override string Show()
        {
            return "ID:" + ID.ToString() + "Name:" + Name + "Type:" + Type + "CrTime:" + CrTime.ToString() + "Publisher:" + Publisher + "Capacity:" + Capacity.ToString();
        }
        public override string Show(string language)
        {
            switch (language)
            {
                case "Chinese":
                    {
                        return "编号:" + ID.ToString() + "名称:" + Name + "属性:" + Type + "创建时间:" + CrTime.ToString() + "发行:" + Publisher + "容量:" + Capacity.ToString();
                    }
                default: return this.Show();
            }
        }
        public string Publisher;
        public double Capacity;
    }