设计快捷店会员的简单管理程序。基本要求如下：
（1）定义人民币RMB类，实现人民币的基本运算和显示。
（2）定义会员member类，表示会员的基本信息，包括：编号（按建立会员的顺序自动生成），姓名，密码，电话。提供输入、输出信息等功能。
（3）由RMB类和member类共同派生一个会员卡memberCar类，提供新建会员、充值、消费和查询余额等功能。
（4）main函数定义一个memberCar类数组或链表，保存会员卡，模拟一个快捷店的会员卡管理功能，主要包括：
① 新建会员；
② 已有会员充值；
③ 已有会员消费（凭密码，不能透支）；
④ 输出快捷店当前会员数，营业额（收、支情况）。
代码：
#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;
}
运行结果：
