C++一个猜数游戏程序

// diceGame.cpp : 定义控制台应用程序的入口点。
//****************************************************************
//diceGame.cpp
//功能：一个猜数游戏程序，主要用来演示选择语句和循环语句的使用
//****************************************************************

#include "stdafx.h"

#include <iostream>  //使用cin,cout,endl
#include <cstdlib>   //rand() srand(seed)
#include <ctime>     //seed=time() ,srand(seed)

using namespace std;


int _tmain(int argc, _TCHAR* argv[])
{
	int randNum1,randNum2,randNum3;   //用于存放3个椭机数
    int rsum;
	int count;
	bool flag;
	int n;
	char c;
	//game note:
	cout<<"here will be an exciting game ^_^ "<<endl;
	cout<<"There are three dice casting in a black box.";
    cout<<"and each face of one dice shows points from 1 to 6,";
	cout<<" please guess the sum of the three dice! "<<endl;
	cout<<" Note that you have three times to guess at most."<<endl;

	flag=true;
	while(flag)
	{
         cout<<"Now the game begin!!!"<<endl;
		 rsum=0;
		 srand((unsigned)time(NULL));  //time函数获取系统时间
		 //srand函数设置道生椭机数的种子
		 randNum1=rand()%6+1;
		 randNum2=rand()%6+1;
		 randNum3=rand()%6+1;
		 rsum=randNum1+randNum2+randNum3;

		 //gamer 最多有3次机会输入答案
		 for(count=0;count<3;count++)
		 {
			 cout<<"Please enter the sum you guess:";
			 cin>>n;
			 if(n<rsum && count<2)
			 {
                 cout<<"Too small number! Enter bigger one!"<<endl;
			 }
			 else if(n>rsum && count<2)
			 {
                 cout<<"Too big number! Enter smaller one!"<<endl;
			 }
			 else if(n==rsum)
			 {
                 cout<<"How smart you are! YOU WIN!!!"<<endl;
				 cout<<"The points one the three dice are:"<<endl;
				 cout<<randNum1<<"  "<<randNum2<<"  "<<randNum3<<endl;
				 break;
			 }
		 }
		 if(count==3)
		 {
            cout<<endl;
			cout<<"Sorry,You lose!"<<endl;
			cout<<randNum1<<"  "<<randNum2<<"  "<<randNum3<<endl;
			cout<<"sum="<<rsum<<endl;
		 }
         //询问是否再玩一局
		 cout<<endl<<"Do you want to play the game again?"<<endl;
		 cout<<"Please enter Y or y to play again,enter other letter to exit the game:"<<endl;
		 cin>>c;
		 if(c=='Y' || c=='y')
		 {
            flag=true;
		 }
		 else
		 {
            flag=false;
		 }
	}

	//暂停操作   
    char str;   
    std::cin>>str;  
	return 0;
}