C#入门经典第十章例题 - - 卡牌

1.库

 using System;

 using System.Collections.Generic;

 using System.Linq;

 using System.Text;

 namespace CardLib

 {

     public enum Suit

     {

         Club,

         Diamond,

         Heart,

         Spade

     }

 }

Suit

 using System;

 using System.Collections.Generic;

 using System.Linq;

 using System.Text;

 namespace CardLib

 {

     public enum Rank

     {

         Ace=,

         Deuce,

         Three,

         Four,

         Five,

         Six,

         Seven,

         Eight,

         Nine,

         Ten,

         Jack,

         Queen,

         King

     }

 }

Rank

 using System;

 using System.Collections.Generic;

 using System.Linq;

 using System.Text;

 namespace CardLib

 {

     public class Card

     {

         public readonly Rank rank;

         public readonly Suit suit;

         private Card()

         {

         }

         public Card(Suit newSuit, Rank newRank)

         {

             suit = newSuit;

             rank = newRank;

         }

         public override string ToString()

         {

             return "The " + rank + " of " + suit + "s\n";

         }

     }

 }

Card

 using System;

 using System.Collections.Generic;

 using System.Linq;

 using System.Text;

 using System.Threading.Tasks;

 namespace CardLib

 {

     public class Deck

     {

         private Card[] cards;

         public Deck()

         {

             cards = new Card[];

             for(int suitVal=;suitVal<;suitVal++)

             {

                 for(int rankVal=;rankVal<;rankVal++)

                 {

                     cards[suitVal *  + rankVal - ] = new Card((Suit)suitVal, (Rank)rankVal);

                 }

             }

         }

         public Card GetCard(int cardNum)

         {

             if (cardNum >=  && cardNum <= )

                 return cards[cardNum];

             else

                 throw (new System.ArgumentOutOfRangeException("cardNum", cardNum, "Value must be between 0 and 51."));

         }

         public void Shuffle()

         {

             Card[] newDeck = new Card[];

             bool[] assigned = new bool[];

             Random sourceGen = new Random();

             for (int i =  ;i < ;i++)

             {

                 int destCard = ;

                 bool foundCard = false;

                 while(foundCard==false)

                 {

                     destCard = sourceGen.Next();

                     if (assigned[destCard] == false)

                         foundCard = true;

                 }

                 assigned[destCard] = true;

                 newDeck[destCard] = cards[i];

             }

             newDeck.CopyTo(cards, );

         }

     }

 }

Deck

2.输出卡牌

 using System;

 using System.Collections.Generic;

 using System.Linq;

 using System.Text;

 using System.Threading.Tasks;

 using CardLib;

 namespace CardClient

 {

     class Program

     {

         static void Main(string[] args)

         {

             Deck myDeck = new Deck();

             myDeck.Shuffle();

             for(int i=;i<;++i)

             {

                 Card tempCard = myDeck.GetCard(i);

                 Console.Write(tempCard.ToString());

                 //if (i != 51)

                 //    Console.Write(",");

                 //else

                 //    Console.WriteLine();

             }

             Console.ReadKey();

         }

     }

 }

Program

3.练习

为 Ch10CardLib 库编写一个控制台客户程序，从洗牌后的 Deck 对象中一次取出 5 张牌。如果这 5 张牌都是相同花色，客户程序就应在屏幕上显示这 5 张牌，以及文本 "Flush!"，否则在取出 50 张牌以后就输出文本 “No flush”，并退出。

 /* 为 CardLib 库编写一个控制台客户程序，从洗牌后的 Deck 对象中一次取出 5 张牌。如果这 5 张牌都是相同花色，

 客户程序就应在屏幕上显示这 5 张牌，以及文本 "Flush!"，否则在取出 50 张牌以后就输出文本 “No flush”，并退出。*/

 //改成了随机抽取五张牌

 using System;

 using System.Collections.Generic;

 using System.Linq;

 using System.Text;

 using System.Threading.Tasks;

 using System.Collections;       //ArrayList类

 using CardLib;

 namespace ConsoleApp1

 {

     class Exercise

     {

         static void Main(string[] args)

         {

             Random randomCard = new Random();      //随机卡号

             Card[] handCard=new Card[];           // 五张手牌

             Deck myDeck = new Deck();

             bool isFlush = true;

             List<int> remainCard = new List<int>();     //创建List存放52张卡号

             for (int i = ; i < ; ++i)

             {

                remainCard.Add(i);

             }

             //输出洗牌后的结果

             Console.WriteLine("The Result after shuffle : ");

             myDeck.Shuffle();

             for(int i=;i<;++i)

             {

                 Console.WriteLine((i+) + " : "+ myDeck.GetCard(i).ToString());

             }

             //循环抽卡，每次五张，童叟无欺

             for (int j = ; j < ; j++)

             {

                 Console.WriteLine("Round : " + (j+) + " Draw! ");

                 for (int i = ; i < ; ++i)

                 {

                     int num = randomCard.Next(,  - i - j * );

                     handCard[i] = myDeck.GetCard(remainCard[num]);

                     remainCard.RemoveAt(num);           //RemoveAt()方法是按照index移除

                     Console.WriteLine("card " + (i+) + " " + handCard[i]);

                     //判断花色

                     if (handCard[i].suit != handCard[].suit)

                     {

                         isFlush = false;

                     }

                 }

                 //判断是否Flush

                 if(isFlush)

                 {

                     Console.WriteLine("Flush !");

                     break;

                 }

                 else

                 {

                     Console.WriteLine("No Flush");

                 }

             }

             Console.ReadKey();

         }

     }

 }

Exercise

在这里大致说下Remove()和RemoveAt()的区别

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Collections;

namespace ConsoleApp28

{

    class Program

    {

        static void Main(string[] args)

        {

            //Remove()是按照内容移除

            List<int> listRemove = new List<int>();

            //添加两个数据5和15

            listRemove.Add();

            listRemove.Add();

            listRemove.Remove();  //没实际效果，因为listRemove中没有0

            Console.WriteLine("listRemove[0] = " + listRemove[]);

            Console.WriteLine("listRemove[1] = " + listRemove[]);

            listRemove.Remove();

            Console.WriteLine("listRemove.Remove(5)后,listRemove[0] =  " + listRemove[]);

            //RemoveAt()是按照index移除

            List<int> listRemoveAt = new List<int>();

            //添加两个数据5和15

            listRemoveAt.Add();

            listRemoveAt.Add();

            //listRemoveAt.RemoveAt(2);  // 报错，因为超出范围

            Console.WriteLine("listRemoveAt[0] = " + listRemoveAt[]);

            Console.WriteLine("listRemoveAt[1] = " + listRemoveAt[]);

            listRemoveAt.RemoveAt();

            Console.WriteLine("listRemove.RemoveAt(0)后,listRemoveAt[0] =  " + listRemoveAt[]);

            Console.ReadKey();

        }

    }

}

remove & removeAt

此外这篇博文里写的很详细，在使用后要注意长度和内容会改变

https://blog.csdn.net/weixin_39800144/article/details/77915981

拙见如图：

可以理解为把这个小方格直接biu掉（误|||），全都往前移