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