自动售货机程序C++求解答

Question

自动售货机程序
出售若干种价格不一的货物
投币存入余额中，购买商品从余额中扣款，不足则提示继续投币
1.有停止购物选项，出货，根据购物情况找零
2.有继续投币选项
3.记录开机以来的营业额
4.货物存量应有固定数量，售完则提示缺货该商品不进行售卖
5.补货功能，补入货物后商品恢复售卖
6.售货机启动后应保持运行

Answer 1

帮写了一个。有用望采纳

#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <iostream>
using namespace std;



int main()
{

    //售货机只卖三种商品
    // 薯片，可乐，面包  单价为 5元，3元，4元  初始数量都为10个

    int shupians=10;
    int cokes=10;
    int breads=10;
    int Moneys=0; //记录营业额
    cout<<"自动售货机系统启动"<<endl;
    while(true)
    {
        int n=0;
        cout<<"1.购买商品"<<endl;
        cout<<"2.补货"<<endl;
        cout<<"3.查询营业额度"<<endl;
        cin>>n;
        if(n==1)
        {
            while(true)
            {
                cout<<"请输入要购买的商品"<<endl;
                cout<<"1.薯片"<<endl;
                cout<<"2.可乐"<<endl;
                cout<<"3.面包"<<endl;
                cout<<"4.退出"<<endl;
                int a=0;
                int Count=0;
                cin>>a;
                if(a==1)
                {
                    cout<<"请输入需要购买的数量"<<endl;
                    cin>>Count;
                    if(Count>shupians)
                    {
                        cout<<"数量超出库存，请重新选择"<<endl;
                    }
                    else
                    {
                        cout<<"总价为:"<<Count*5<<endl;
                        cout<<"请投币取货"<<endl;
                        cout<<"请输入投币金额"<<endl;
                        int money=0;
                        cin>>money;
                        if(money<Count*5)
                        {
                            while(true)
                            {

                                cout<<"金额不足"<<endl;
                                cout<<"1.继续投币"<<endl;
                                cout<<"2.取消购买"<<endl;
                                int g=0;
                                cin>>g;
                                if(g==1)
                                {
                                    cout<<"输入投币金额"<<endl;
                                    int money2=0;
                                    cin>>money2;
                                    money+=money2;
                                    if(money>=Count*5)
                                    {
                                        Moneys+=Count*5;
                                        cout<<"购买成功"<<endl;
                                        cout<<"找零:"<<money-Count*5<<"元"<<endl;
                                        break;
                                    }
                                }else if(g==2)
                                {
                                    cout<<"找零:"<<money<<"元"<<endl;
                                    break;
                                }
                            }

                        }
                    }

                }else if(a==2)
                {
                    cout<<"请输入需要购买的数量"<<endl;
                    cin>>Count;
                    if(Count>cokes)
                    {
                        cout<<"数量超出库存，请重新选择"<<endl;
                    }
                    else
                    {
                        cout<<"总价为:"<<Count*3<<endl;
                        cout<<"请投币取货"<<endl;
                        cout<<"请输入投币金额"<<endl;
                        int money=0;
                        cin>>money;
                        if(money<Count*5)
                        {
                            while(true)
                            {

                                cout<<"金额不足"<<endl;
                                cout<<"1.继续投币"<<endl;
                                cout<<"2.取消购买"<<endl;
                                int g=0;
                                cin>>g;
                                if(g==1)
                                {
                                    cout<<"输入投币金额"<<endl;
                                    int money2=0;
                                    cin>>money2;
                                    money+=money2;
                                    if(money>=Count*3)
                                    {
                                        Moneys+=Count*3;
                                        cout<<"购买成功"<<endl;
                                        cout<<"找零:"<<money-Count*5<<"元"<<endl;
                                        break;
                                    }
                                }else if(g==2)
                                {
                                    cout<<"找零:"<<money<<"元"<<endl;
                                    break;
                                }
                            }

                        }
                    }

                }else if(a==3)
                {
                    cout<<"请输入需要购买的数量"<<endl;
                    cin>>Count;
                    if(Count>breads)
                    {
                        cout<<"数量超出库存，请重新选择"<<endl;
                    }
                    else
                    {
                        cout<<"总价为:"<<Count*5<<endl;
                        cout<<"请投币取货"<<endl;
                        cout<<"请输入投币金额"<<endl;
                        int money=0;
                        cin>>money;
                        if(money<Count*4)
                        {
                            while(true)
                            {

                                cout<<"金额不足"<<endl;
                                cout<<"1.继续投币"<<endl;
                                cout<<"2.取消购买"<<endl;
                                int g=0;
                                cin>>g;
                                if(g==1)
                                {
                                    cout<<"输入投币金额"<<endl;
                                    int money2=0;
                                    cin>>money2;
                                    money+=money2;
                                    if(money>=Count*4)
                                    {
                                        Moneys+=Count*4;
                                        cout<<"购买成功"<<endl;
                                        cout<<"找零:"<<money-Count*5<<"元"<<endl;
                                        break;
                                    }
                                }else if(g==2)
                                {
                                    cout<<"找零:"<<money<<"元"<<endl;
                                    break;
                                }
                            }

                        }
                    }
                }
                else if(a==4)
                {
                    break;
                }
                else
                {
                    cout<<"操作有误，重新操作"<<endl;
                }
            }

        }
        else if(n==2)
        {
            while(true)
            {
                cout<<"请输入要购买的商品"<<endl;
                cout<<"1.薯片"<<endl;
                cout<<"2.可乐"<<endl;
                cout<<"3.面包"<<endl;
                cout<<"4.退出"<<endl;

                int a=0;
                cin>>a;
                if(a==1)
                {
                    cout<<"请输入上货数量"<<endl;
                    int Count=0;
                    cin>>Count;
                    shupians+=Count;
                    cout<<"薯片数量:"<<shupians<<endl;
                }else if(a==2)
                {
                    cout<<"请输入上货数量"<<endl;
                    int Count=0;
                    cin>>Count;
                    cokes+=Count;
                    cout<<"可乐数量:"<<cokes<<endl;

                }
                else if(a==3)
                {
                    cout<<"请输入上货数量"<<endl;
                    int Count=0;
                    cin>>Count;
                    breads+=Count;
                    cout<<"面包数量:"<<breads<<endl;

                }
                else if(a==4)
                {
                    break;
                }
                else
                {
                    cout<<"操作有误,请重新操作"<<endl;
                }
            }
        }
        else if(n==3)
        {
            cout<<"营业额为:"<<Moneys<<endl;
        }
        else
        {
            cout<<"操作有误,请重新选择"<<endl;
        }
    }

    return 0;
}