帮我用c++写一个图书管理系统的代码

好的，这是一个简单的图书管理系统的C++代码示例：

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

using namespace std;

class Book {
private:
    string title;
    string author;
    int id;
public:
    Book(string title, string author, int id) {
        this->title = title;
        this->author = author;
        this->id = id;
    }
    string getTitle() {
        return title;
    }
    string getAuthor() {
        return author;
    }
    int getId() {
        return id;
    }
};

class Library {
private:
    vector<Book> books;
public:
    void addBook(Book book) {
        books.push_back(book);
    }
    void removeBook(int id) {
        for (int i = 0; i < books.size(); i++) {
            if (books[i].getId() == id) {
                books.erase(books.begin() + i);
                break;
            }
        }
    }
    void printBooks() {
        for (int i = 0; i < books.size(); i++) {
            cout << "Title: " << books[i].getTitle() << endl;
            cout << "Author: " << books[i].getAuthor() << endl;
            cout << "ID: " << books[i].getId() << endl;
            cout << "----------------------" << endl;
        }
    }
};

int main() {
    Library library;
    library.addBook(Book("The Great Gatsby", "F. Scott Fitzgerald", 1));
    library.addBook(Book("To Kill a Mockingbird", "Harper Lee", 2));
    library.addBook(Book("1984", "George Orwell", 3));

    library.printBooks();

    library.removeBook(2);

    library.printBooks();

    return 0;
}

这个代码实现了一个简单的图书管理系统，包括添加书籍、删除书籍和打印书籍列表的功能。其中`Book`类表示一本书，包含书名、作者和ID等信息，`Library`类表示整个图书馆，包含了一个`vector`向量来存储所有的书籍。在主函数中，我们首先创建一个`Library`对象，然后添加三本书，打印书籍列表，然后删除第二本书并再次打印书籍列表。