C++实现会员管理程序

#include<iostream>
#include<String.h>
using namespace std;
class RMB{
  int yuan,jiao,fen;
public:
  RMB(int y=0,int j=0,int f=0){
    yuan=y;
    jiao=j;
    fen=f;
  }
  RMB(double x)
  {
     int n = int((x + 0.005) * 100);
     yuan = n / 100;
     jiao = (n - yuan * 100) / 10;
     fen = n % 10;
  }
  operator double()
  {
     return (yuan + jiao * 0.1 + fen * 0.01);
  }
  ~RMB() {}
   friend ostream & operator<<(ostream&output, const RMB&m){
    output << m.yuan << "元" << m.jiao << "角" << m.fen << "分" << endl;
    return output;
   }
  friend istream & operator>>(istream&input, RMB&m){
     cout << "元：";
     input >> m.yuan;
     cout << "角：";
     input >> m.jiao;
     cout << "分：";
     input >> m.fen;
     return input;
  }
};
class member{
public:
  static int number;
  char name[20],code[10], phoneNumber[12];
  static int bianhao() { number++; return number; }
  member(char*a,char*c,char*p){
  strcpy(name,a);
  strcpy(code,c);
  strcpy(phoneNumber,p);
  }
  ~member() {}
   friend istream&operator>>(istream&input, member&A)
  {
     cout << "please input name: " << endl;
     input >> A.name;
     cout << "please input code: " << endl;
     input >> A.code;
     cout << "please input phone number : " << endl;
     input >> A.phoneNumber;
     return input;
  }
  friend ostream&operator<<(ostream&output, member&A)
  {
    output << "the information of member:" << endl;
    output << "number" << '\t' << "name" << '\t' << "phone" << endl;
    output << A.bianhao() << '\t' << A.name << '\t' << A.phoneNumber << endl;
    return output;
  }
};
int member::number=0;
class memberCar:public RMB,public member{
public:
   RMB income, outcome, balance;
   memberCar*next;
   memberCar(char*a, char*c, char*p):member(a,c,p){
    balance = 0;
    income = 0;
    outcome = 0;
   }
  ~memberCar() {}
  friend ostream&operator<<(ostream&output, const memberCar&A)
{
  output << "the information of member:" << endl;
  output << "number" << '\t' << "name" << '\t' << "phone" << '\t' << '\t' << "balance" << endl;
  output << A.bianhao() << '\t' << A.name << '\t' << A.phoneNumber << '\t' << A.balance << endl;
  return output;
}
void recharge()
  {
     cout << "How much do you want to recharge?" << '\n' << "please input the money : " << endl;
     cin >> income;
     balance =balance + income;
     cout << "your balance : " << balance << endl;
  }
void cost()
  {
     char y[10];
     cout << "please input your code : " << endl;
     cin >> y;
     if (strncmp(code, y, 10)==0)
     {
       cout << "please input the money you cost : " << endl;
       cin >> outcome;
       if (outcome > balance)
       {
         cout << "your balance is not enough ! " << endl;
       }
       else
       {
         balance = balance - outcome;
         cout << "your balance : "<< balance;
       }
     }
     else
     {
       cout << "your code is wrong ! " << endl;
     }
  }
  void query(){ cout << "your balance : " << balance; }
};
void AddFront(memberCar*&h, memberCar*&t)
{
  t->next = h;
  h = t;
}
void FindList(memberCar*head, int n = 2)
{
  char s[20];
  cout << "please input your name : " << endl;
  cin >> s;
  while (head)
  {
     if (strncmp(head->name, s, 20) == 0)      {
     switch (n)
       {
       case 2:
         (*head).recharge();
         break;
       case 3:
         (*head).cost();
         break;
       }
     }
     head = head->next;
  }
}
void ShowList(memberCar*head)
{
  int count = 0;
  RMB I=0, O=0;
  while (head)
  {
     count++;
     I=I+head->income;
     O = O + head->outcome;
     head = head->next;
  }
  cout << "the number of member :  " << count << endl;
  cout << "the income of the store : " << I << endl;
  cout << "the outcome of the store : " << O << endl;
  cout << "turn-over of the store :  " << (I - O) << endl;
}
int main()
{
  int choice;
  memberCar*head = NULL, *p;
  do
  {
     cout << "please choice:\n";
     cout << "1 : new member, 2 : recharge, 3 : purchase , 4 :output the number of member and turn-over,other number is over! " << endl;
     cin >> choice;
     switch (choice)
     {
     case 1:
    {
        cout << "input information of new member : " << endl;
        char a[20],c[10],h[12];
        cout << "please input name: " << endl;
        cin>>a;
        cout << "please input code: " << endl;
        cin>>c;
        cout << "please input phone number : " << endl;
        cin>>h;
       p = new memberCar(a, c, h);
       AddFront(head, p);
       cout << *p << endl;
       break;
     }
     case 2:
     {
       FindList(head, 2);
       break;
     }
     case 3:
     {
       FindList(head, 3);
       break;
     }
     case 4:
     {
       ShowList(head);
       break;
     }
     }
  } while (choice);
  return 0;
}