帮我用C++写一份较为完整的图书管理系统，复杂一点，能在控制台进行操作，需要设计基类，派生类。

好的，以下是一个比较完整的图书管理系统，包含了基类、派生类、以及在控制台进行操作的功能。代码中包含较为详细的注释，方便理解和修改。

#include <iostream>
#include <string>
#include <vector>

using namespace std;

// 基类 Book
class Book {
public:
    string title;           // 书名
    string author;          // 作者
    string publisher;       // 出版社
    string ISBN;            // ISBN号
    int year;               // 出版年份
    double price;           // 价格
    int stock;              // 库存量

    // 构造函数
    Book(string title = "", string author = "", string publisher = "", string ISBN = "",
         int year = 0, double price = 0, int stock = 0);

    // 显示书籍信息
    void display();

    // 获取书籍名称
    string getTitle();

    // 获取书籍库存量
    int getStock();

    // 更新书籍库存量
    void updateStock(int num);
};

// 派生类 Fiction
class Fiction : public Book {
public:
    string genre;           // 小说类型

    // 构造函数
    Fiction(string title = "", string author = "", string publisher = "", string ISBN = "",
            int year = 0, double price = 0, int stock = 0, string genre = "");

    // 显示书籍信息
    void display();
};

// 派生类 Textbook
class Textbook : public Book {
public:
    string subject;         // 教科书学科

    // 构造函数
    Textbook(string title = "", string author = "", string publisher = "", string ISBN = "",
             int year = 0, double price = 0, int stock = 0, string subject = "");

    // 显示书籍信息
    void display();
};

// 图书类型类 BookType
class BookType {
public:
    string name;            // 类型名称
    string description;     // 类型描述
    vector<Book*> books;    // 该类型所包含的所有书籍

    // 构造函数
    BookType(string name = "", string description = "");

    // 添加书籍
    void addBook(Book* book);

    // 显示该类型下的所有书籍
    void displayBooks();
};

// 图书管理系统类 Library
class Library {
public:
    vector<BookType*> types;    // 所有图书类型
    vector<Book*> books;        // 所有书籍

    // 构造函数
    Library();

    // 添加新的图书类型
    void addType(BookType* type);

    // 添加新的书籍
    void addBook(Book* book);

    // 显示所有图书类型
    void displayTypes();

    // 显示所有书籍
    void displayBooks();

    // 根据书名查找书籍
    Book* findBook(string title);

    // 借书
    bool borrowBook(string title);

    // 还书
    bool returnBook(string title);
};

// ------------- 以下是具体实现 -------------

// Book 类的实现
Book::Book(string title, string author, string publisher, string ISBN,
           int year, double price, int stock) {
    this->title = title;
    this->author = author;
    this->publisher = publisher;
    this->ISBN = ISBN;
    this->year = year;
    this->price = price;
    this->stock = stock;
}

void Book::display() {
    cout << "书名：" << title << endl;
    cout << "作者：" << author << endl;
    cout << "出版社：" << publisher << endl;
    cout << "ISBN号：" << ISBN << endl;
    cout << "出版年份：" << year << endl;
    cout << "价格：" << price << endl;
    cout << "库存量：" << stock << endl;
}

string Book::getTitle() {
    return title;
}

int Book::getStock() {
    return stock;
}

void Book::updateStock(int num) {
    stock += num;
}

// Fiction 类的实现
Fiction::Fiction(string title, string author, string publisher, string ISBN,
                 int year, double price, int stock, string genre) :
    Book(title, author, publisher, ISBN, year, price, stock) {
    this->genre = genre;
}

void Fiction::display() {
    cout << "小说类型：" << genre << endl;
    Book::display();
}

// Textbook 类的实现
Textbook::Textbook(string title, string author, string publisher, string ISBN,
                   int year, double price, int stock, string subject) :
    Book(title, author, publisher, ISBN, year, price, stock) {
    this->subject = subject;
}

void Textbook::display() {
    cout << "教科书学科：" << subject << endl;
    Book::display();
}

// BookType 类的实现
BookType::BookType(string name, string description) {
    this->name = name;
    this->description = description;
}

void BookType::addBook(Book* book) {
    books.push_back(book);
}

void BookType::displayBooks() {
    cout << "类型名称：" << name << endl;
    cout << "类型描述：" << description << endl;
    cout << "包含的书籍：" << endl;
    for (int i = 0; i < books.size(); i++) {
        books[i]->display();
        cout << endl;
    }
}

// Library 类的实现
Library::Library() {
    // 初始化图书类型
    BookType* fictionType = new BookType("小说", "包括小说、散文、诗歌等文学作品");
    BookType* textbookType = new BookType("教科书", "包括各种学科的教科书");
    types.push_back(fictionType);
    types.push_back(textbookType);

    // 初始化书籍信息
    books.push_back(new Fiction("红楼梦", "曹雪芹", "人民文学出版社", "9787020000464", 1791, 39.8, 10, "古典小说"));
    books.push_back(new Fiction("活着", "余华", "作家出版社", "9787506365437", 1993, 20.0, 5, "现代小说"));
    books.push_back(new Textbook("高等数学", "同济大学数学系", "高等教育出版社", "9787040171160", 1987, 99.0, 8, "数学"));
    books.push_back(new Textbook("C++程序设计", "谭浩强", "清华大学出版社", "9787302330646", 2000, 49.0, 6, "计算机科学"));
}

void Library::addType(BookType* type) {
    types.push_back(type);
}

void Library::addBook(Book* book) {
    books.push_back(book);
}

void Library::displayTypes() {
    cout << "所有图书类型：" << endl;
    for (int i = 0; i < types.size(); i++) {
        types[i]->displayBooks();
        cout << endl;
    }
}

void Library::displayBooks() {
    cout << "所有书籍：" << endl;
    for (int i = 0; i < books.size(); i++) {
        books[i]->display();
        cout << endl;
    }
}

Book* Library::findBook(string title) {
    for (int i = 0; i < books.size(); i++) {
        if (books[i]->getTitle() == title) {
            return books[i];
        }
    }
    return NULL;
}

bool Library::borrowBook(string title) {
    Book* book = findBook(title);
    if (book != NULL && book->getStock() > 0) {
        book->updateStock(-1);
        return true;
    }
    return false;
}

bool Library::returnBook(string title) {
    Book* book = findBook(title);
    if (book != NULL) {
        book->updateStock(1);
        return true;
    }
    return false;
}

// 主函数
int main() {
    Library lib;

    // 显示所有图书类型和书籍信息
    lib.displayTypes();
    lib.displayBooks();

    // 借阅书籍
    string borrowTitle = "红楼梦";
    if (lib.borrowBook(borrowTitle)) {
        cout << "您已成功借阅《" << borrowTitle << "》！" << endl;
    } else {
        cout << "借阅《" << borrowTitle << "》失败，请检查库存量！" << endl;
    }

    // 还书
    string returnTitle = "红楼梦";
    if (lib.returnBook(returnTitle)) {
        cout << "您已成功归还《" << returnTitle << "》！" << endl;
    } else {
        cout << "归还《" << returnTitle << "》失败，请检查书名是否正确！" << endl;
    }

    return 0;
}

该图书管理系统包含了基类 Book，派生类 Fiction 和 Textbook，图书类型类 BookType，以及图书管理系统类 Library。在主函数中，我们先显示了所有图书类型和书籍信息，然后进行了借书和还书的操作。你可以根据需求进行修改和完善。