图书管理系统代码C++

图书管理系统是一个常见的管理系统，主要用于管理图书的借阅、归还、查询等操作。其实现涉及到数据结构和算法等多方面知识。下面是一个简单的C++代码示例：

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

class Book {
public:
    string name;
    string author;
    string press;
    int stock;
    int borrowed;
    Book(string n, string a, string p, int s) {
        name = n;
        author = a;
        press = p;
        stock = s;
        borrowed = 0;
    }
};

class Library {
public:
    Book books[100];
    int numBooks;

    Library() {
        numBooks = 0;
    }

    void addBook(string n, string a, string p, int s) {
        if (numBooks >= 100) {
            cout << "The library is full." << endl;
            return;
        }
        books[numBooks] = Book(n, a, p, s);
        numBooks++;
    }

    void showBookList() {
        for (int i = 0; i < numBooks; i++) {
            cout << i + 1 << ". " << books[i].name << " by " << books[i].author
                << " published by " << books[i].press << ", stock: " << books[i].stock
                << ", borrowed: " << books[i].borrowed << endl;
        }
    }

    void borrowBook(int index) {
        if (index < 0 || index >= numBooks) {
            cout << "Invalid index." << endl;
            return;
        }
        if (books[index].stock <= 0) {
            cout << "The book is out of stock." << endl;
            return;
        }
        books[index].stock--;
        books[index].borrowed++;
        cout << "Borrow success." << endl;
    }

    void returnBook(int index) {
        if (index < 0 || index >= numBooks) {
            cout << "Invalid index." << endl;
            return;
        }
        if (books[index].borrowed <= 0) {
            cout << "The book is not borrowed." << endl;
            return;
        }
        books[index].stock++;
        books[index].borrowed--;
        cout << "Return success." << endl;
    }

};

int main() {
    Library library;

    library.addBook("C++ Primer", "Stanley B. Lippman", "Addison-Wesley Professional", 10);
    library.addBook("Effective C++", "Scott Meyers", "Addison-Wesley Professional", 5);
    library.addBook("Thinking in C++", "Bruce Eckel", "Prentice Hall PTR", 8);

    library.showBookList();

    library.borrowBook(1);

    library.showBookList();

    library.returnBook(1);

    library.showBookList();

    return 0;
}

上述代码实现了图书管理系统的基本功能：添加书籍、展示书籍列表、借阅书籍、归还书籍。具体实现细节可以根据需求进行调整。如果您有其他问题或需要进一步了解，可以随时问我哦！