python图书管理系统代码包括文件

以下是一个简单的Python图书管理系统的代码示例：

import os
import json

def load_data():
    if os.path.exists("books.json"):
        with open("books.json", "r") as f:
            return json.load(f)
    else:
        return []

def save_data(books):
    with open("books.json", "w") as f:
        json.dump(books, f)

def add_book():
    title = input("Enter book title: ")
    author = input("Enter author name: ")
    year = input("Enter publication year: ")
    books = load_data()
    books.append({"title": title, "author": author, "year": year})
    save_data(books)
    print("Book added successfully.")

def view_books():
    books = load_data()
    if books:
        for book in books:
            print(f"{book['title']} by {book['author']} ({book['year']})")
    else:
        print("No books found.")

def search_book():
    title = input("Enter book title to search: ")
    books = load_data()
    found_books = []
    for book in books:
        if title.lower() in book["title"].lower():
            found_books.append(book)
    if found_books:
        for book in found_books:
            print(f"{book['title']} by {book['author']} ({book['year']})")
    else:
        print("No matching books found.")

while True:
    print("\nWelcome to the Book Management System")
    print("1. Add Book")
    print("2. View Books")
    print("3. Search Book")
    print("4. Exit")

    choice = input("Enter your choice: ")

    if choice == "1":
        add_book()
    elif choice == "2":
        view_books()
    elif choice == "3":
        search_book()
    elif choice == "4":
        break
    else:
        print("Invalid choice. Please try again.")

此代码包括一个books.json文件，用于存储书籍数据。要使用此代码，请将其保存为.py文件并运行。