购买到最多的巧克力实验代码

shop.h

#ifndef SHOP_H
#define SHOP_H


class Shop
{
public:
    Shop();
    int buy(int m,int n);//只用钱买到的巧克力数
    int chang(int m, int n);//兑换的巧克力
    int remain_coupons(int m,int n);//剩余的券
    void input();//输入
    void output();//输出
    void choose();//购买选项
    int getk();//获取k的值
    int gett();//获取t的值
    int getmoney();//获取money的值
    int getnumber();//获取number的值
    int getm();//获取m的值

private:
    int money;//拥有的钱
    int number;//兑换一块巧克力需要的优惠券
    int k;//购买到的巧克力
    int t;//剩余的优惠券
    int m;//巧克力的单价
    int q;//只用钱买到的巧克力数
    int p;//优惠券兑换的巧克力数
    int n;//现在拥有的优惠券数
};

#endif // SHOP_H

shop.cpp

#include "shop.h"
#include<iostream>
#include<fstream>
using namespace std;
Shop::Shop()
{
    money=0;
    number=0;
    k=0;
    t=0;
    m=1;
    q=0;
    p=0;
    n=0;
}
//求只用钱买到的巧克力数量，m代表你有的美元，n代表巧克力单价
int Shop::buy(int m, int n)
{
    int k;
    k=m/n;
    return k;
}
//运用递归函数求优惠券兑换的巧克力
int Shop::chang(int m, int n)
{
    if((m/n + m%n) < n){
        return m/n;
    }
    else{
        return (chang((m/n + m%n),n) + m/n);
    }

}
//运用递归函数求剩余的优惠券
int Shop::remain_coupons(int m, int n)
{
    if((m/n+m%n)<n){
        return (m/n+m%n);
    }
    else {
        return (remain_coupons((m/n+m%n),n));
    }
}

void Shop::input()
{
    cout<<"     请问你有多少钱：";
    cin>>money;
    cout<<"     ---------------------"<<endl;
    cout<<"     多少优惠券兑换一块巧克力：";
    cin>>number;
    cout<<"     ---------------------"<<endl;
    cout<<"     巧克力的单价：";
    cin>>m;
    cout<<"     ---------------------"<<endl;
}

void Shop::output()
{
    q=buy(money,m);//只用钱买到的巧克力数
    n=q;//最开始拥有的优惠券
    p=chang(n,number);
    k=q+p;
    t=remain_coupons(n,number);
    cout<<"     你总共能买到的巧克力数量是"<<k<<endl;
    cout<<"     你还剩下的优惠券的数量是"<<t<<endl;
    cout<<"     -----------------------"<<endl;
    cout<<"          继续进行购买请按a"<<endl;
    cout<<"          退出请按b"<<endl;
    cout<<"     -----------------------"<<endl;
    cout<<"     ";//设置后面输入选项的位置
}

void Shop::choose()
{
    cout<<endl;
    cout<<endl;
    cout<<"   ____________________________________________"<<endl;
    cout<<"   |------------------商店--------------------|"<<endl;
    cout<<"   |------------------------------------------|"<<endl;
    cout<<"   |---------本店购买巧克力，一美元一块-------|"<<endl;
    cout<<"   |---------且可以用优惠券兑换巧克力---------|"<<endl;
    cout<<"   |                                          |"<<endl;
    cout<<"   |请选择：----------------------------------|"<<endl;
    cout<<"   |----a.购买巧克力--------------------------|"<<endl;
    cout<<"   |----b.退出购买----------------------------|"<<endl;
    cout<<"   |                                          |"<<endl;
    cout<<"   |           请输入相应的按键进行选择       |"<<endl;
    cout<<"   |__________________________________________|"<<endl;
}

int Shop::getk()
{
    int m;
    m=k;
    return m;
}

int Shop::gett()
{
    int n;
    n=t;
    return n;
}

int Shop::getmoney()
{
    int a;
    a=money;
    return a;
}

int Shop::getnumber()
{
    int b;
    b=number;
    return b;
}

int Shop::getm()
{
    int c;
    c=m;
    return c;
}

main.cpp

#include <iostream>
#include<fstream>
#include "shop.h"
using namespace std;

int main()
{
    Shop chocolate;
    chocolate.choose();
    ofstream fout;
    char ch;
    //设计输入选项按键位置
    cout<<endl;
    cout<<"    ";
    while(cin>>ch){
        switch (ch) {
        case 'a':
            chocolate.input();//调用输入函数
            chocolate.output();//将结果打印在屏幕
            //将内容写进文档
            fout.open("E:\outfile.txt",ios::app);
                if(!fout){
                    cout << "无法打开文件!!!"<<endl;
                    return 1;
                }
                fout <<ch<<endl;
                fout<<"     请问你有多少钱："<<chocolate.getmoney()<<endl;
                fout<<"     ---------------------"<<endl;
                fout<<"     多少优惠券兑换一块巧克力："<<chocolate.getnumber()<<endl;
                fout<<"     ---------------------"<<endl;
                fout<<"     巧克力单价："<<chocolate.getm()<<endl;
                fout<<"     ---------------------"<<endl;
                fout<<"     你总共能买到的巧克力数量是"<<chocolate.getk()<<endl;
                fout<<"     你还剩下的优惠券的数量是"<<chocolate.gett()<<endl;
                fout<<"     -----------------------"<<endl;
                fout<<"          继续进行购买请按a"<<endl;
                fout<<"          退出请按b"<<endl;
                fout<<"     -----------------------"<<endl;
                fout.close();                
            break;
        case 'b':
            cout<<"    购买结束,按回车退出"<<endl;
            cout<<"     -----------------------"<<endl;
            cout<<"     ";//设置后面输入选项的位置
            fout.open("E:\outfile.txt",ios::app);
                if(!fout){
                    cout << "无法打开文件!!!"<<endl;
                    return 1;
                 }
                fout<<ch<<endl;
                fout<<"    购买结束,按回车退出"<<endl;
                fout<<"     -----------------------"<<endl;
                fout.close();
            exit(0);
        default:
            cout<<"    请输入a或者b"<<endl;
            cout<<"     -----------------------"<<endl;
            cout<<"     ";//设置后面输入选项的位置
            fout.open("E:\outfile.txt",ios::app);
                if(!fout){
                    cout << "无法打开文件!!!"<<endl;
                    return 1;
                 }
                fout<<ch<<endl;
                fout<<"    请输入a或者b"<<endl;
                fout<<"     -----------------------"<<endl;
                fout.close();
            break;
        }
    }
    return 0;
}