main.cpp

一个自动售货机的模拟

#include <iostream>

#include <string>

#include <vector>

#include"coin.h"

#include"product.h"

#include"machine.h"

using namespace std;

/* 
double VendingMachine::remove_money();
void VendingMachine::chaxun_product();
void VendingMachine::setcurrent_product();
int VendingMachine::getcurrent_product();自己加的*/

void main()

{

   vector<Coin> coins;

   vector<Coin> current_pay;

   coins.push_back(Coin("nickel", 0.05));

   coins.push_back(Coin("dime", 0.1));

   coins.push_back(Coin("quarter", 0.25));

   coins.push_back(Coin("rmb", 1.00));

 

   VendingMachine machine;

   bool more = true;

   machine.chaxun_product();

   while (more)

   {

      cout << "a)添加商品 x)查询商品 s)选择商品 p)投币 c)取消 e)查询当前金额 r)取款 q)退出: ";

      string command;

      cin>>command;

      if (command == "a")

      {

                     cout << "商品名: ";

                     string name;

                     cin>>name;

                            

                     cout << "价格: ";

                     double price;

                     cin >> price;

                     cout << "数量: ";

                     int quantity;

                     cin >> quantity;

                     machine.add_product(Product(name, price, quantity));

              }

      else if (command == "s")

      {

                double total1;

                total1=machine.return_yiyoucoins();

                if(total1>=5000)//当售货机中的货款大于等于5000时，暂停售货

                {  

                       cout<<"对不起，现在暂停售货！"<<endl;

                }

                else

                {

                     machine.setcurrent_product();

                     cout << "商品名: ";

                     string name;

                     cin>>name;

                     machine.select_product(name);

                }

      }

      else if (command == "p")

      {  

                if(machine.getcurrent_product()!=-1)//如果当前已选择商品，才可以投币

                     {

                            bool panduan=false;

                            while(!panduan)//多次投币的实现

                            {

                                   cout << "所投钱币名称( 以 # 结束投币过程):";

                                   string name;

                                   cin>>name;

                                   while(name!="#")

                                   {

                                          bool found = false;

                                          for (int i = 0; !found && i < coins.size(); i++)

                                          {

                                                 if (coins[i].get_name() == name)

                                                 {

                                                        current_pay.push_back(coins[i]);

                                                        found=true;

                                                 }

                                          }

                                          if(!found)

                                          {

                                                 cout << "不存在该货币，请重新投入：\n";

                                          }

                                          cin>>name;

 

                                   }

                            double k=machine.add_coinbijiao(current_pay );

                                   if(k==-1) 

                                   {

                                          machine.add_coin(current_pay);

                                          for (int i = current_pay.size() - 1; i >= 0; i--)

                                          {

                                                 current_pay.pop_back();

                                          }

                                                 panduan=true;

                                   }

                                   else

                                   {     

                                          cout<<"您的金额不足，还差 "<<k<<" 是否继续投币 Y  N :";

                                          string jixu;

                                          cin>>jixu;

                                          if(jixu!="Y")

                                          {

                                                 machine.setcurrent_product();

                                                 double total=0;

                                                 for (int i = current_pay.size() - 1; i >= 0; i--)

                                                 {

                                                        total = total + current_pay[i].get_value();

                                                        current_pay.pop_back();

                                                 }

                                                 cout << "Returned(退还) " <<total<< "\n";

                                                 panduan=true;

                                          }

                                   }

                            }

                }

                else

                       cout<<"您还没有选择商品！"<<endl;

      }

      else if (command == "c")//取消操作并并退还货款

         {   

                machine.setcurrent_product();

                double total=0;

                for (int i = current_pay.size() - 1; i >= 0; i--)

                {

                         total = total + current_pay[i].get_value();

                            current_pay.pop_back();

                }

                cout << "Returned(退还) " <<total<< "\n";

 

         }

      else if (command == "r")

         cout << "Removed (取走) " << machine.remove_money() << "\n";

         else if(command=="x")

         {

                machine.chaxun_product();

         }

         else if(command=="e")//查询当前售货机中的货款

               cout<<"当前金额:"<<machine.return_yiyoucoins()<<endl;

         else if(command == "q")

         more = false;

   }

}

 

 

double VendingMachine::remove_money()//取钱

{

   double total = 0;

   for (int i = coins.size() - 1; i >= 0; i--)

   {

      total = total + coins[i].get_value();

      coins.pop_back();

   }

   return total;

}

 

void VendingMachine::chaxun_product()

{ 

       if(products.size()==0)

       {

              cout<<"暂时没有添加商品!"<<endl;

       }

       else

       {

              cout<<"商品名"<<"\t\t"<<"价格"<<"\t\t"<<"数量"<<endl;

              for (int i = 0; i < products.size(); i++)

              {

                     cout<<products[i].get_name()<<"\t\t"<<products[i].get_price()<<"\t\t"<<products[i].get_quantity()<<endl;

              }

       }

}

 

void VendingMachine::setcurrent_product()

{

       current_product=-1;

}

 

int VendingMachine::getcurrent_product()

{

       return current_product;

} 

}