图书管理系统借书还书c++

以下是C++图书管理系统中借书还书的示例代码：

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

// 定义图书结构体
struct Book {
    string name; // 书名
    string author; // 作者
    string publisher; // 出版社
    string ISBN; // ISBN号
    bool borrowed; // 是否被借出
    string borrower; // 借阅人
};

// 借书函数
void borrowBook(Book &book, string borrower) {
    if (book.borrowed) {
        cout << "该书已被借出！" << endl;
    } else {
        book.borrowed = true;
        book.borrower = borrower;
        cout << "借书成功！" << endl;
    }
}

// 还书函数
void returnBook(Book &book) {
    if (book.borrowed) {
        book.borrowed = false;
        book.borrower = "";
        cout << "还书成功！" << endl;
    } else {
        cout << "该书未被借出！" << endl;
    }
}

int main() {
    // 读取图书信息
    ifstream fin("books.txt");
    int bookCount;
    fin >> bookCount;
    Book *books = new Book[bookCount];
    for (int i = 0; i < bookCount; i++) {
        fin >> books[i].name >> books[i].author >> books[i].publisher >> books[i].ISBN >> books[i].borrowed >> books[i].borrower;
    }
    fin.close();

    // 借书还书
    string name, borrower;
    cout << "请输入要借阅的书名：";
    cin >> name;
    bool found = false;
    for (int i = 0; i < bookCount; i++) {
        if (books[i].name == name) {
            found = true;
            if (books[i].borrowed) {
                cout << "该书已被借出，借阅人为：" << books[i].borrower << endl;
                cout << "请输入还书人姓名：";
                cin >> borrower;
                if (books[i].borrower == borrower) {
                    returnBook(books[i]);
                } else {
                    cout << "还书人姓名错误！ << endl;
                }
            } else {
                cout << "请输入借书人姓名：";
                cin >> borrower;
                borrowBook(books[i], borrower);
            }
            break;
        }
    }
    if (!found) {
        cout << "未找到该书！" << endl;
    }

    // 保存图书信息
    ofstream fout("books.txt");
    fout << bookCount << endl;
    for (int i = 0; i < bookCount; i++) {
        fout << books[i].name << " " << books[i].author << " " << books[i].publisher << " " << books[i].ISBN << " " << books[i].borrowed << " " << books[i].borrower << endl;
    }
    fout.close();

    delete[] books;
    return 0;
}