通过c++使用数据结构完成图书馆图书借阅系统菜单

好的，下面是一个基于C++的简单图书馆图书借阅系统菜单的代码实现，包括了基于链表的数据结构：

#include <iostream>
#include <string>
using namespace std;

struct Book {
    string name;
    string author;
    bool isBorrowed;
    Book *next;
};

class Library {
    private:
        int size;
        Book *head;
    public:
        Library() {
            size = 0;
            head = NULL;
        }
        void addBook(string name, string author) {
            Book *book = new Book;
            book->name = name;
            book->author = author;
            book->isBorrowed = false;
            book->next = head;
            head = book;
            size++;
            cout << "添加图书成功！" << endl;
        }
        void displayBooks() {
            if (size == 0) {
                cout << "图书馆里没有任何书籍！" << endl;
            } else {
                Book *current = head;
                cout << "图书馆里有如下书籍：" << endl;
                while (current != NULL) {
                    cout << "书名：" << current->name << endl;
                    cout << "作者：" << current->author << endl;
                    cout << "状态：" << (current->isBorrowed ? "已借出" : "未借出") << endl;
                    cout << endl;
                    current = current->next;
                }
            }
        }
        void borrowBook(string name) {
            if (size == 0) {
                cout << "图书馆里没有任何书籍！" << endl;
            } else {
                Book *current = head;
                bool foundBook = false;
                while (current != NULL) {
                    if (current->name == name && !current->isBorrowed) {
                        current->isBorrowed = true;
                        foundBook = true;
                        cout << "借书成功！" << endl;
                        break;
                    }
                    current = current->next;
                }
                if (!foundBook) {
                    cout << "该书已被借出或不存在！" << endl;
                }
            }
        }
        void returnBook(string name) {
            if (size == 0) {
                cout << "图书馆里没有任何书籍！" << endl;
            } else {
                Book *current = head;
                bool foundBook = false;
                while (current != NULL) {
                    if (current->name == name && current->isBorrowed) {
                        current->isBorrowed = false;
                        foundBook = true;
                        cout << "还书成功！" << endl;
                        break;
                    }
                    current = current->next;
                }
                if (!foundBook) {
                    cout << "该书未被借出或不存在！" << endl;
                }
            }
        }
};

int main() {
    Library library;
    int choice;
    string name, author;
    do {
        cout << "欢迎来到图书馆！请选择您需要的操作：" << endl;
        cout << "1. 添加图书" << endl;
        cout << "2. 查看图书" << endl;
        cout << "3. 借阅图书" << endl;
        cout << "4. 归还图书" << endl;
        cout << "5. 退出系统" << endl;
        cin >> choice;
        switch (choice) {
            case 1:
                cout << "请输入书名和作者名（以空格分隔）：" << endl;
                cin >> name >> author;
                library.addBook(name, author);
                break;
            case 2:
                library.displayBooks();
                break;
            case 3:
                cout << "请输入要借阅的书名：" << endl;
                cin >> name;
                library.borrowBook(name);
                break;
            case 4:
                cout << "请输入要归还的书名：" << endl;
                cin >> name;
                library.returnBook(name);
                break;
            case 5:
                cout << "谢谢使用，再见！" << endl;
                return 0;
            default:
                cout << "输入错误，请重新输入！" << endl;
                break;
        }
    } while (true);
    return 0;
}

该程序实现了一个简单的图书馆图书借阅系统菜单，包括添加图书、查看图书、借阅图书和归还图书等功能。其中，图书信息采用链表的形式存储，每个节点存储一个Book结构体，包括书名、作者名和是否已被借出等信息。用户可以通过菜单选择相应的操作，完成对图书馆的管理。