请帮我写一个书店管理系统的c++代码

好的，以下是一个简单的书店管理系统的C++代码，其中包括添加书籍、删除书籍、查询书籍、显示书籍信息等功能：

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

using namespace std;

struct Book {
    string name;
    string author;
    float price;
    int quantity;
};

vector<Book> books;

void addBook() {
    Book book;
    cout << "Enter book name: ";
    getline(cin, book.name);
    cout << "Enter author name: ";
    getline(cin, book.author);
    cout << "Enter book price: ";
    cin >> book.price;
    cout << "Enter book quantity: ";
    cin >> book.quantity;
    books.push_back(book);
    cout << "Book added successfully!" << endl;
}

void deleteBook() {
    string name;
    cout << "Enter book name to delete: ";
    getline(cin, name);
    for (int i = 0; i < books.size(); i++) {
        if (books[i].name == name) {
            books.erase(books.begin() + i);
            cout << "Book deleted successfully!" << endl;
            return;
        }
    }
    cout << "Book not found!" << endl;
}

void searchBook() {
    string name;
    cout << "Enter book name to search: ";
    getline(cin, name);
    for (int i = 0; i < books.size(); i++) {
        if (books[i].name == name) {
            cout << "Book found!" << endl;
            cout << "Name: " << books[i].name << endl;
            cout << "Author: " << books[i].author << endl;
            cout << "Price: " << books[i].price << endl;
            cout << "Quantity: " << books[i].quantity << endl;
            return;
        }
    }
    cout << "Book not found!" << endl;
}

void displayBooks() {
    if (books.size() == 0) {
        cout << "No books in the store!" << endl;
        return;
    }
    cout << "Books in the store:" << endl;
    for (int i = 0; i < books.size(); i++) {
        cout << "Book " << i+1 << ":" << endl;
        cout << "Name: " << books[i].name << endl;
        cout << "Author: " << books[i].author << endl;
        cout << "Price: " << books[i].price << endl;
        cout << "Quantity: " << books[i].quantity << endl;
    }
}

int main() {
    int choice;
    do {
        cout << "Bookstore management system" << endl;
        cout << "1. Add book" << endl;
        cout << "2. Delete book" << endl;
        cout << "3. Search book" << endl;
        cout << "4. Display books" << endl;
        cout << "5. Quit" << endl;
        cout << "Enter your choice: ";
        cin >> choice;
        cin.ignore();
        switch (choice) {
            case 1:
                addBook();
                break;
            case 2:
                deleteBook();
                break;
            case 3:
                searchBook();
                break;
            case 4:
                displayBooks();
                break;
            case 5:
                break;
            default:
                cout << "Invalid choice!" << endl;
        }
    } while (choice != 5);
    return 0;
}

希望能对你有所帮助！