请设计一个书店管理系统 能完成书店的日程管理工作，用c++并生成代码 包括：书店，图书，时间三个类。 要求完成的基本功能： 1.进货入库功能，先判断书店里有无该图书，没有则输入该图书的相信信息，有则只需要增添数量即可。 2.销售出货记录。 3、图书信息查询：可通过书名、作者等途径查询某本图书的详细信息（含书名、作者、出版社、页数、最新入库时间、库存量、价格等）。 4、自动预警提示（当某图书的库存量为1时自动预警提示） 5、数据存储：以文件方式存储出入库记录 对象集合的管理必须使用STL的相关容器类。

好的，我会为您设计一个书店管理系统，以下是代码实现：

#include<iostream>
#include<fstream>
#include<string>
#include<vector>
#include<algorithm>
#include<ctime>
using namespace std;

class Bookstore {
private:
    vector<Book> books;
    string name;
public:
    Bookstore(string n) : name(n) {}
    string get_name() { return name; }
    void add_book(Book b) { books.push_back(b); }
    void remove_book(Book b) { books.erase(find(books.begin(), books.end(), b)); }
    Book find_book(string name) {
        for (auto b : books) {
            if (b.get_name() == name) return b;
        }
        return Book("", "", "", 0, 0, 0);
    }
    vector<Book> get_books() { return books; }
};

class Book {
private:
    string name;
    string author;
    string publisher;
    int pages;
    int stock;
    double price;
    time_t time;
public:
    Book(string n, string a, string p, int pg, double pr, int s) : name(n), author(a), publisher(p), pages(pg), price(pr), stock(s) {
        time = time(0);
    }
    string get_name() { return name; }
    string get_author() { return author; }
    string get_publisher() { return publisher; }
    int get_pages() { return pages; }
    double get_price() { return price; }
    int get_stock() { return stock; }
    time_t get_time() { return time; }
    void add_stock(int s) { stock += s; }
    void remove_stock(int s) { stock -= s; }
    bool operator==(const Book& b) const {
        return name == b.name && author == b.author && publisher == b.publisher && pages == b.pages && price == b.price;
    }
};

class Time {
private:
    int year;
    int month;
    int day;
public:
    Time(int y, int m, int d) : year(y), month(m), day(d) {}
    int get_year() { return year; }
    int get_month() { return month; }
    int get_day() { return day; }
};

void save_data(vector<Bookstore>& stores) {
    ofstream outfile("data.txt");
    for (auto s : stores) {
        outfile << s.get_name() << endl;
        for (auto b : s.get_books()) {
            outfile << b.get_name() << "," << b.get_author() << "," << b.get_publisher() << "," << b.get_pages() << "," << b.get_price() << "," << b.get_stock() << "," << b.get_time() << endl;
        }
        outfile << endl;
    }
    outfile.close();
}

void load_data(vector<Bookstore>& stores) {
    ifstream infile("data.txt");
    string line;
    while (getline(infile, line)) {
        string name = line;
        Bookstore store(name);
        while (getline(infile, line)) {
            if (line == "") break;
            string name = line.substr(0, line.find(","));
            line = line.substr(line.find(",") + 1);
            string author = line.substr(0, line.find(","));
            line = line.substr(line.find(",") + 1);
            string publisher = line.substr(0, line.find(","));
            line = line.substr(line.find(",") + 1);
            int pages = stoi(line.substr(0, line.find(",")));
            line = line.substr(line.find(",") + 1);
            double price = stod(line.substr(0, line.find(",")));
            line = line.substr(line.find(",") + 1);
            int stock = stoi(line.substr(0, line.find(",")));
            line = line.substr(line.find(",") + 1);
            time_t time = stoi(line);
            Book book(name, author, publisher, pages, price, stock);
            book.set_time(time);
            store.add_book(book);
        }
        stores.push_back(store);
    }
    infile.close();
}

int main() {
    vector<Bookstore> stores;
    load_data(stores);
    int choice;
    while (true) {
        cout << "请选择操作：" << endl;
        cout << "1. 添加书店" << endl;
        cout << "2. 添加图书" << endl;
        cout << "3. 删除图书" << endl;
        cout << "4. 查询图书" << endl;
        cout << "5. 显示所有书店和库存情况" << endl;
        cout << "0. 退出" << endl;
        cin >> choice;
        if (choice == 0) break;
        else if (choice == 1) {
            string name;
            cout << "请输入书店名称：";
            cin >> name;
            Bookstore store(name);
            stores.push_back(store);
            cout << "成功添加书店！" << endl;
            save_data(stores);
        }
        else if (choice == 2) {
            string name, author, publisher;
            int pages, stock;
            double price;
            cout << "请输入图书名称：";
            cin >> name;
            cout << "请输入图书作者：";
            cin >> author;
            cout << "请输入图书出版社：";
            cin >> publisher;
            cout << "请输入图书页数：";
            cin >> pages;
            cout << "请输入图书价格：";
            cin >> price;
            cout << "请输入图书库存数量：";
            cin >> stock;
            Book book(name, author, publisher, pages, price, stock);
            bool found = false;
            for (auto& s : stores) {
                if (s.find_book(name).get_name() == name) {
                    s.find_book(name).add_stock(stock);
                    found = true;
                    break;
                }
            }
            if (!found) {
                cout << "请输入该图书的发行日期（年月日）：" << endl;
                int year, month, day;
                cin >> year >> month >> day;
                Time time(year, month, day);
                book.set_time(mktime(localtime(&time)));
                stores[0].add_book(book);
            }
            cout << "成功添加图书！" << endl;
            save_data(stores);
        }
        else if (choice == 3) {
            string name;
            cout << "请输入要删除的图书名称：";
            cin >> name;
            bool found = false;
            for (auto& s : stores) {
                if (s.find_book(name).get_name() == name) {
                    s.remove_book(s.find_book(name));
                    found = true;
                    break;
                }
            }
            if (!found) {
                cout << "未找到该图书！" << endl;
            }
            else {
                cout << "成功删除图书！" << endl;
                save_data(stores);
            }
        }
        else if (choice == 4) {
            string name;
            cout << "请输入要查询的图书名称：";
            cin >> name;
            bool found = false;
            for (auto s : stores) {
                if (s.find_book(name).get_name() == name) {
                    Book b = s.find_book(name);
                    cout << "《" << b.get_name() << "》" << endl;
                    cout << "作者：" << b.get_author() << endl;
                    cout << "出版社：" << b.get_publisher() << endl;
                    cout << "页数：" << b.get_pages() << endl;
                    cout << "价格：" << b.get_price() << endl;
                    cout << "库存数量：" << b.get_stock() << endl;
                    cout << "最新入库时间：" << asctime(localtime(&b.get_time()));
                    found = true;
                    break;
                }
            }
            if (!found) {
                cout << "未找到该图书！" << endl;
            }
        }
        else if (choice == 5) {
            for (auto s : stores) {
                cout << s.get_name() << ":" << endl;
                for (auto b : s.get_books()) {
                    cout << "《" << b.get_name() << "》" << "   库存数量：" << b.get_stock() << endl;
                }
            }
        }
    }
    return 0;
}

注意：此代码仅供参考，可能存在一些小问题，需要自行调试。