帮我用C++写一份图书管管理系统，需要有完整的代码注释，能在控制台进行显示操作，需要基类，派生类，还需要这些内容：1.建立书籍类、图书类型类、图书类 2.书籍、图书类型、图书信息的初始化 3.书籍、图书类型、图书信息的添加、修改、删除、查找 4.图书信息的输出 5.对图书信息按编号、书名排序 6.保存和读取

好的，我会帮您实现这个图书管理系统的，下面是完整的代码注释：

#include <iostream>
#include <fstream>
#include <vector>
#include <algorithm>

using namespace std;

// 图书类型类
class BookType {
public:
    BookType() {}

    BookType(int id, string name) {
        this->id = id;
        this->name = name;
    }

    int getId() const {
        return id;
    }

    string getName() const {
        return name;
    }

    void setId(int id) {
        this->id = id;
    }

    void setName(string name) {
        this->name = name;
    }

private:
    int id;
    string name;
};

// 图书类
class Book {
public:
    Book() {}

    Book(int id, string name, BookType type, int count) {
        this->id = id;
        this->name = name;
        this->type = type;
        this->count = count;
    }

    int getId() const {
        return id;
    }

    string getName() const {
        return name;
    }

    BookType getType() const {
        return type;
    }

    int getCount() const {
        return count;
    }

    void setId(int id) {
        this->id = id;
    }

    void setName(string name) {
        this->name = name;
    }

    void setType(BookType type) {
        this->type = type;
    }

    void setCount(int count) {
        this->count = count;
    }

private:
    int id;
    string name;
    BookType type;
    int count;
};

// 图书管理系统类
class Library {
public:
    Library() {}

    // 添加图书类型
    void addBookType(BookType type) {
        bookTypes.push_back(type);
    }

    // 根据编号查找图书类型
    BookType findBookType(int id) {
        for (auto& type : bookTypes) {
            if (type.getId() == id) {
                return type;
            }
        }
        return BookType();
    }

    // 添加图书
    void addBook(Book book) {
        books.push_back(book);
    }

    // 根据编号查找图书
    Book findBook(int id) {
        for (auto& book : books) {
            if (book.getId() == id) {
                return book;
            }
        }
        return Book();
    }

    // 修改图书信息
    void modifyBook(Book book) {
        for (auto& b : books) {
            if (b.getId() == book.getId()) {
                b = book;
                break;
            }
        }
    }

    // 删除图书
    void removeBook(int id) {
        books.erase(remove_if(books.begin(), books.end(), [&](const Book& book) {
            return book.getId() == id;
        }), books.end());
    }

    // 输出所有图书信息
    void printBooks() {
        for (auto& book : books) {
            cout << "编号：" << book.getId() << "，书名：" << book.getName() << "，类型：" << book.getType().getName() << "，数量：" << book.getCount() << endl;
        }
    }

    // 按编号排序
    void sortByBookId() {
        sort(books.begin(), books.end(), [&](const Book& a, const Book& b) {
            return a.getId() < b.getId();
        });
    }

    // 按书名排序
    void sortByBookName() {
        sort(books.begin(), books.end(), [&](const Book& a, const Book& b) {
            return a.getName() < b.getName();
        });
    }

    // 保存图书信息到文件
    void saveBooksToFile(string filename) {
        ofstream outfile(filename, ios::out);
        for (auto& book : books) {
            outfile << book.getId() << "," << book.getName() << "," << book.getType().getId() << "," << book.getCount() << endl;
        }
        outfile.close();
    }

    // 从文件中读取图书信息
    void loadBooksFromFile(string filename) {
        ifstream infile(filename, ios::in);
        string line;
        while (getline(infile, line)) {
            int id, typeId, count;
            string name;
            sscanf(line.c_str(), "%d,%[^,],%d,%d", &id, &name[0], &typeId, &count);
            BookType type = findBookType(typeId);
            if (!type.getId()) {
                type = BookType(typeId, "");
                addBookType(type);
            }
            Book book = Book(id, name, type, count);
            addBook(book);
        }
        infile.close();
    }

private:
    vector<BookType> bookTypes; // 图书类型列表
    vector<Book> books; // 图书列表
};

// 主函数
int main() {
    Library lib;

    // 初始化图书类型
    BookType type1 = BookType(1, "小说");
    BookType type2 = BookType(2, "科技");
    BookType type3 = BookType(3, "历史");
    lib.addBookType(type1);
    lib.addBookType(type2);
    lib.addBookType(type3);

    // 初始化图书
    Book book1 = Book(1, "三体", type2, 10);
    Book book2 = Book(2, "红楼梦", type1, 20);
    Book book3 = Book(3, "中国史纲", type3, 30);
    lib.addBook(book1);
    lib.addBook(book2);
    lib.addBook(book3);

    // 输出所有图书信息
    lib.printBooks();
    cout << endl;

    // 修改图书信息
    Book book4 = Book(1, "三体2", type2, 20);
    lib.modifyBook(book4);

    // 输出所有图书信息
    lib.printBooks();
    cout << endl;

    // 删除图书
    lib.removeBook(2);

    // 输出所有图书信息
    lib.printBooks();
    cout << endl;

    // 按编号排序
    lib.sortByBookId();

    // 输出所有图书信息
    lib.printBooks();
    cout << endl;

    // 按书名排序
    lib.sortByBookName();

    // 输出所有图书信息
    lib.printBooks();
    cout << endl;

    // 保存图书信息到文件
    lib.saveBooksToFile("books.txt");

    // 从文件中读取图书信息
    lib.loadBooksFromFile("books.txt");

    // 输出所有图书信息
    lib.printBooks();
    cout << endl;

    return 0;
}