自动售货机系统程序

1、Coin类：#include <iostream>#include <string>#include <vector> using namespace std; class Coinpublic:   /*      Constructs a coin with a given name and value      param n the coin name     

2、param v the coin value   */   Coin(string n, double v);   /*      Gets the coin name.      return the name   */   string get_name() const;   /*      Gets the coin va

3、lue      return the value   */   double get_value() const;private:   string name;   double value; Coin:Coin(string n, double v)   name = n;   value = v; string Coin:get_name() const   return name

4、; double Coin:get_value() const   return value;  Product类：#include <iostream>#include <string>#include <vector> using namespace std; class Productpublic:   /*      Constructs a product with a given name, price an

5、d quantity      param n the product name      param p the price      param q the quantity   */   Product(string n, double p, int q);   /*      Gets the product name 

6、     return the name   */   string get_name() const;   /*      Gets the product price      return the price   */   double get_price() const;   /*    &

7、#160; Gets the product quantity      return the quantity   */   int get_quantity() const;   /*      Adds to the product quantity      param amount the amount to add   */   voi

8、d add_quantity(int amount);private:   string name;   double price;   int quantity; Product:Product(string n, double p, int q)   name = n;   price = p;   quantity = q; string Product:get_name() const   return name; d

9、ouble Product:get_price() const   return price; int Product:get_quantity() const   return quantity; void Product:add_quantity(int amount)   quantity = quantity + amount;  VendingMachine类： class VendingMachinepublic:   /*  

10、60;   Constructs a vending machine with no current      product selection.   */   VendingMachine();   /*      Adds product to the machine.      param p the product to add   */

11、   void add_product(Product p);   /*      Sets the currently selected product      param name the product name      return true if the machine has a product with the given      nam

12、e   */   bool select_product(string name);   void chaxun_product();/查询当前售货机内的商品   /*      Adds a coin to pay for the currently selected product.      param c the coin to add      return

13、 true if sufficient coins have been added to pay      for the selected product.   */   bool add_coin(vector<Coin> current_pay);   /*      Removes all coins that were added to pay for the current   &#

14、160;  product.      return the value of the returned coins   */   double return_coins();   /*      Removes all money that was paid for products.      return the value of the money  

15、; */   double remove_money();double add_coinbijiao(vector<Coin> current_pay );/对投入的金钱和所购买的商品的价格进行比较double return_yiyoucoins();/统计售货机中已有的货款void setcurrent_product();/把当前选择的商品代号置为-1int getcurrent_product();/得到当前选择的商品代号private:   vector<Product> products;   int

16、 current_product;   vector<Coin> current_payment;   vector<Coin> coins; VendingMachine:VendingMachine()   current_product = -1; void VendingMachine:add_product(Product p)/添加商品   for (int i = 0; i < products.size(); i+)   

17、0;     if (productsi.get_name() = p.get_name() && productsi.get_price() = p.get_price()               productsi.add_quantity(p.get_quantity();           

18、;    cout<<"添加成功！"<<endl;         return;               else if(productsi.get_name() = p.get_name() && productsi.get_price() != p.get_price()  &#

19、160;                      cout<<"已存在该商品，与您输入的价格不同！"<<endl;                return;      

20、        products.push_back(p);   cout<<"添加成功！"<<endl; bool VendingMachine:select_product(string name)/选择商品                 int i;     

21、0;        for ( i = 0;  i < products.size(); i+)                                   if (productsi.

22、get_name() = name && productsi.get_quantity() > 0)                                        

23、0;        current_product = i;                            return true;          

24、                                else                   

25、                              if(productsi.get_name() = name && productsi.get_quantity() = 0)          

26、;                                                  

27、0;  cout << "对不起，该商品已售完！n"                                   return false;      

28、;                                                   

29、60;                   if(i=products.size()                             

30、0;     cout<<"对不起，不存在该商品！"<<endl;                     return false;               double

31、 VendingMachine:return_yiyoucoins()/统计售货机当前的金钱总额   double total = 0;   for (int i = coins.size() - 1; i >= 0; i-)         total = total + coinsi.get_value();      return total; bool VendingMachine:add_coin(vector<C

32、oin> current_pay )/投币购买商品       if (current_product = -1) return false;              for(int k=0;k < current_pay.size(); k+)            

33、60;                      current_payment.push_back(current_payk);                       &#

34、160;    double total = 0;              for (int i = 0; i < current_payment.size(); i+)/计算投入的总钱数                     &

35、#160;             total = total + current_paymenti.get_value();                            if (total >= pro

36、ductscurrent_product.get_price()/投入的钱数与所购商品的价格比较                                   for (int i = current_payment.size() - 1; i >= 0;

37、i-)                                                 coins.push_ba

38、ck(current_paymenti);                            current_payment.pop_back();               

39、;                           productscurrent_product.add_quantity(-1);                 

40、0;   current_product = -1;                     cout<<"交易成功！"<<endl;                 

41、;    return true;                            else                   &#

42、160;                return false;               double VendingMachine:add_coinbijiao(vector<Coin> current_pay )       i

43、f (current_product = -1) return false;       double total = 0;       for(int k=0;k < current_pay.size(); k+)                     total = total

44、 + current_payk.get_value();           double m=productscurrent_product.get_price()-total;   if (m>0)              return m;   else      

45、    return -1;   double VendingMachine:return_coins()/统计当前投入的金钱总额   double total = 0;   for (int i = current_payment.size() - 1; i >= 0; i-)         total = total + current_paymenti.get_value();    

46、;  current_payment.pop_back();      return total;   double VendingMachine:remove_money()/取钱   double total = 0;   for (int i = coins.size() - 1; i >= 0; i-)         total = total + coinsi.get_value();&#

47、160;     coins.pop_back();      return total; void VendingMachine:chaxun_product()        if(products.size()=0)                    

48、; cout<<"暂时没有添加商品!"<<endl;              else                     cout<<"商品名"<<"tt"<<&

49、quot;价格"<<"tt"<<"数量"<<endl;              for (int i = 0; i < products.size(); i+)                   

50、;                cout<<productsi.get_name()<<"tt"<<productsi.get_price()<<"tt"<<productsi.get_quantity()<<endl;         

51、0;            void VendingMachine:setcurrent_product()       current_product=-1; int VendingMachine:getcurrent_product()       return current_product;  Main函数：#include <ios

52、tream>#include <string>#include <vector>#include"coin.h"#include"product.h"#include"machine.h"using namespace std; void main()   vector<Coin> coins;   vector<Coin> current_pay;   coins.push_back(Coin("ni

53、ckel", 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

54、();   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&qu

55、ot;)                           cout << "商品名: "                   

56、;  string name;                     cin>>name;                        

57、0;                        cout << "价格: "                     double price;

58、                     cin >> price;                     cout << "数量: " 

59、60;                   int quantity;                     cin >> quantity;     &#

60、160;               machine.add_product(Product(name, price, quantity);                    else if (command = "s")   

61、;                   double total1;                total1=machine.return_yiyoucoins();           

62、;     if(total1>=5000)/当售货机中的货款大于等于5000时，暂停售货                                         cout<<&quo

63、t;对不起，现在暂停售货！"<<endl;                                else                 

64、                    machine.setcurrent_product();                     cout << "商品名: "

65、0;                    string name;                     cin>>name;     

66、0;               machine.select_product(name);                            else if (command = "p")

67、60;                       if(machine.getcurrent_product()!=-1)/如果当前已选择商品，才可以投币                      

68、                           bool panduan=false;                    

69、0;       while(!panduan)/多次投币的实现                                        

70、60;                      cout << "所投钱币名称( 以 # 结束投币过程):"                    

71、0;              string name;                                   ci

72、n>>name;                                   while(name!="#")         &

73、#160;                                                  

74、                 bool found = false;                              

75、0;           for (int i = 0; !found && i < coins.size(); i+)                              

76、;                                                  

77、0;          if (coinsi.get_name() = name)                                   

78、0;                                                  

79、60;                  current_pay.push_back(coinsi);                           &#

80、160;                            found=true;                    &#

81、160;                                                  &

82、#160;                                                  

83、           if(!found)                                      &

84、#160;                                                  

85、  cout << "不存在该货币，请重新投入：n"                                           

86、                                         cin>>name;       &

87、#160;                                                   

88、;     double k=machine.add_coinbijiao(current_pay );                                   if(k=-1)   &#

89、160;                                                  &

90、#160;                       machine.add_coin(current_pay);                      

91、                    for (int i = current_pay.size() - 1; i >= 0; i-)                      &#

92、160;                                                  &

93、#160;                 current_pay.pop_back();                             &

94、#160;                                                  

95、           panduan=true;                                      

96、60;                               else                  

97、0;                                                   &#

98、160;           cout<<"您的金额不足，还差 "<<k<<" 是否继续投币 Y  N :"                         

99、60;                string jixu;                                &#

100、160;         cin>>jixu;                                      

101、60;   if(jixu!="Y")                                            &#

102、160;                                              machine.setcurrent_produc

103、t();                                                 double

104、total=0;                                                 for

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

106、                                                   

107、;            total = total + current_payi.get_value();                                

108、;                        current_pay.pop_back();                       

109、;                                                  

110、0;                        cout << "Returned(退还) " <<total<< "n"              

111、                                   panduan=true;             

112、0;                                                  

113、60;                                                   &

114、#160;                    else                       cout<<"您还没有选择商品！"<<endl;   

115、;         else if (command = "c")/取消操作并并退还货款                            machine.setcurrent_product();      

116、60;         double total=0;                for (int i = current_pay.size() - 1; i >= 0; i-)                  

117、60;                      total = total + current_payi.get_value();                      &#

118、160;     current_pay.pop_back();                                cout << "Returned(退还) " <<total<< "n"&

119、#160;               else if (command = "r")         cout << "Removed (取走) " << machine.remove_money() << "n"        

120、else if(command="x")                         machine.chaxun_product();                  else if(command="e&quo

121、t;)/查询当前售货机中的货款               cout<<"当前金额:"<<machine.return_yiyoucoins()<<endl;         else if(command = "q")        

122、; more = false;     double VendingMachine:remove_money()/取钱   double total = 0;   for (int i = coins.size() - 1; i >= 0; i-)         total = total + coinsi.get_value();      coins.pop_back();