명품 C++ Programming 8장 OpenChallenge

#include <iostream>
#include <string>
using namespace std;
 
class Product {
protected:
    int id;
    string info;
    string prod;
    string price;
public:
    Product(){}
    Product(int id, string info, string prod, string price) {
        this->id = id; this->info = info; this->prod = prod; this->price = price;
    }
    virtual void show() = 0;
};
 
class Book :public Product {
protected:
    string ISBN;
    string writer;
    string sub;
public:
    Book(int id, string info, string prod, string price, string ISBN, string writer, string sub) :Product(id, info, prod, price) {
        this->ISBN = ISBN;
        this->writer = writer;
        this->sub = sub;
    }
    void show() {
        cout << "---- 상품 ID : " << id << '\n';
        cout << "상품설명 : " << info << '\n';
        cout << "생산자 : " << prod << '\n';
        cout << "가격 : " << price << '\n';
        cout << "ISBN : " << ISBN << '\n';
        cout << "책제목 : " << sub << '\n';
        cout << "저자 : " << writer << '\n';
    }
};
 
class ConversationBook :public Book {
protected:
    string lan;
public:
    ConversationBook(int id, string info, string prod, string price, string ISBN, string writer, string sub, string lan) :Book(id, info, prod, price, ISBN, writer, sub) {
        this->lan = lan;
    }
    void show() {
        cout << "---- 상품 ID : " << id << '\n';
        cout << "상품설명 : " << info << '\n';
        cout << "생산자 : " << prod << '\n';
        cout << "가격 : " << price << '\n';
        cout << "ISBN : " << ISBN << '\n';
        cout << "책제목 : " << sub << '\n';
        cout << "저자 : " << writer << '\n';
        cout << "언어 : " << lan << '\n';
    }
};
 
class CompactDisk :public Product {
protected:
    string a_sub;
    string singer;
public:
    CompactDisk(int id, string info, string prod, string price, string a_sub, string singer) :Product(id, info, prod, price) {
        this->a_sub = a_sub;
        this->singer = singer;
    }
    void show() {
        cout << "---- 상품 ID : " << id << '\n';
        cout << "상품설명 : " << info << '\n';
        cout << "생산자 : " << prod << '\n';
        cout << "가격 : " << price << '\n';
        cout << "앨범제목 : " << a_sub << '\n';
        cout << "가수 : " << singer << '\n';
    }
};
 
int main() {
    Product* p[100];
    int menu, o_menu;
    int index = 0;
    string info, prod, price, ISBN, writer, sub, lan, a_sub, singer;
    cout << "***** 상품 관리 프로그램을 작동합니다 *****" << '\n';
    while (1) {
        cout << "상품 추가(1), 모든 상품 조회(2), 끝내기(3) ? ";
        cin >> menu;
        switch (menu) {
        case 1:
            cout << "상품 종류 책(1), 음악CD(2), 회화책(3) ? ";
            cin >> o_menu;
            cin.ignore();
            switch (o_menu) {
            case 1: {
                cout << "상품설명>>"; getline(cin, info);
                cout << "생산자>>"; getline(cin, prod);
                cout << "가격>>"; getline(cin, price);
                cout << "책제목>>"; getline(cin, sub);
                cout << "저자>>"; getline(cin, writer);
                cout << "ISBN>>"; getline(cin, ISBN);
                cout << "\n";
                Book *b = new Book(index, info, prod, price, ISBN, writer, sub);
                p[index] = b;
                break;
            }
            case 2: {
                cout << "상품설명>>"; getline(cin, info);
                cout << "생산자>>"; getline(cin, prod);
                cout << "가격>>"; getline(cin, price);
                cout << "앨범제목>>"; getline(cin, a_sub);
                cout << "가수>>"; getline(cin, singer);
                cout << "\n";
                CompactDisk *c = new CompactDisk(index, info, prod, price, a_sub, singer);
                p[index] = c;
                break;
            }
            case 3: {
                cout << "상품설명>>"; getline(cin, info);
                cout << "생산자>>"; getline(cin, prod);
                cout << "가격>>"; getline(cin, price);
                cout << "책제목>>"; getline(cin, sub);
                cout << "저자>>"; getline(cin, writer);
                cout << "언어>>"; getline(cin, lan);
                cout << "ISBN>>"; getline(cin, ISBN);
                cout << "\n";
                ConversationBook *cb = new ConversationBook(index, info, prod, price, ISBN, writer, sub, lan);
                p[index] = cb;
                break;
            }
            }
            index++;
            break;
        case 2:
            for (int i = 0; i < index; i++)
                p[i]->show();
            break;
        case 3:
            return 0;
        }
    }
}