cardenum.cpp

来自「本课程主要介绍面向对象程序设计的方法和c++语言的基本概念。以c++语言中的面向」· C++ 代码 · 共 59 行

// cardenum.cpp
// demonstrates enumerations
#include <iostream>
using namespace std;

const int jack = 11;         //2 through 10 are unnamed integers
const int queen = 12;
const int king = 13;
const int ace = 14;

enum Suit { clubs, diamonds, hearts, spades };
////////////////////////////////////////////////////////////////
struct card
   {
   int number;               //2 to 10, jack, queen, king, ace
   Suit suit;                //clubs, diamonds, hearts, spades
   };
////////////////////////////////////////////////////////////////
int main()
   {
   card temp, chosen, prize;                  //define cards
   int position;

   card card1 = { 7, clubs };                 //initialize card1
   cout << "Card 1 is the seven of clubs\n";

   card card2 = { jack, hearts };             //initialize card2
   cout << "Card 2 is the jack of hearts\n";  

   card card3 = { ace, spades };              //initialize card3
   cout << "Card 3 is the ace of spades\n";   

   prize = card3;               //copy this card, to remember it

   cout << "I'm swapping card 1 and card 3\n";
   temp = card3; card3 = card1; card1 = temp;

   cout << "I'm swapping card 2 and card 3\n";
   temp = card3; card3 = card2; card2 = temp;

   cout << "I'm swapping card 1 and card 2\n";
   temp = card2; card2 = card1; card1 = temp;

   cout << "Now, where (1, 2, or 3) is the ace of spades? ";
   cin >> position;

   switch (position)
      {
      case 1: chosen = card1; break;
      case 2: chosen = card2; break;
      case 3: chosen = card3; break;
      }
   if(chosen.number == prize.number &&          //compare cards
			chosen.suit == prize.suit)
      cout << "That's right!  You win!\n";
   else
      cout << "Sorry. You lose.\n";
   return 0;
   }