c++图书馆管理系统源代码

C++图书馆管理系统是一个常见的项目，它可以帮助图书馆管理图书的借阅、归还、查询等功能。下面是一个简单的C++图书馆管理系统的源代码示例：

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

using namespace std;

class Book {
private:
    string title;
    string author;
    bool available;

public:
    Book(string title, string author) {
        this->title = title;
        this->author = author;
        this->available = true;
    }

    string getTitle() {
        return title;
    }

    string getAuthor() {
        return author;
    }

    bool isAvailable() {
        return available;
    }

    void setAvailable(bool available) {
        this->available = available;
    }
};

class Library {
private:
    vector<Book> books;

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

    void displayBooks() {
        cout << "Books in the library:" << endl;
        for (int i = 0; i < books.size(); i++) {
            cout << "Title: " << books[i].getTitle() << ", Author: " << books[i].getAuthor();
            if (books[i].isAvailable()) {
                cout << " (Available)" << endl;
            } else {
                cout << " (Not Available)" << endl;
            }
        }
    }

    void borrowBook(string title) {
        for (int i = 0; i < books.size(); i++) {
            if (books[i].getTitle() == title && books[i].isAvailable()) {
                books[i].setAvailable(false);
                cout << "Successfully borrowed the book: " << title << endl;
                return;
            }
        }
        cout << "The book " << title << " is not available for borrowing." << endl;
    }

    void returnBook(string title) {
        for (int i = 0; i < books.size(); i++) {
            if (books[i].getTitle() == title && !books[i].isAvailable()) {
                books[i].setAvailable(true);
                cout << "Successfully returned the book: " << title << endl;
                return;
            }
        }
        cout << "The book " << title << " is not valid or already returned." << endl;
    }
};

int main() {
    Library library;

    // 添加书籍
    Book book1("Book 1", "Author 1");
    Book book2("Book 2", "Author 2");
    Book book3("Book 3", "Author 3");
    library.addBook(book1);
    library.addBook(book2);
    library.addBook(book3);

    // 显示所有书籍
    library.displayBooks();

    // 借阅书籍
    library.borrowBook("Book 1");

    // 再次显示所有书籍
    library.displayBooks();

    // 归还书籍
    library.returnBook("Book 1");

    // 再次显示所有书籍
    library.displayBooks();

    return 0;
}

这个示例代码实现了一个简单的图书馆管理系统，包括添加书籍、显示所有书籍、借阅书籍和归还书籍等功能。你可以根据自己的需求进行修改和扩展。