C++实例会员管理程序

向右看齐 2023-10-07 13:34 1阅读 0赞

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：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE1NzE5NjEz_size_16_color_FFFFFF_t_70]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE1NzE5NjEz_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200424201403872.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE1NzE5NjEz,size_16,color_FFFFFF,t_70