用Python实现一个图书管理系统

好的，下面是一个简单的图书管理系统的Python代码示例：

class Book:
    def __init__(self, title, author, genre, year):
        self.title = title
        self.author = author
        self.genre = genre
        self.year = year

class Library:
    def __init__(self):
        self.books = []

    def add_book(self, book):
        self.books.append(book)
        print("Book added successfully.")

    def remove_book(self, book):
        if book in self.books:
            self.books.remove(book)
            print("Book removed successfully.")
        else:
            print("Book not found.")

    def search_book(self, title):
        for book in self.books:
            if book.title == title:
                print(f"{book.title} by {book.author} ({book.genre}, {book.year})")
                return
        print("Book not found.")

    def show_all_books(self):
        for book in self.books:
            print(f"{book.title} by {book.author} ({book.genre}, {book.year})")

library = Library()

book1 = Book("The Great Gatsby", "F. Scott Fitzgerald", "Classic", 1925)
book2 = Book("To Kill a Mockingbird", "Harper Lee", "Classic", 1960)

library.add_book(book1)
library.add_book(book2)

library.show_all_books()

library.search_book("The Great Gatsby")

library.remove_book(book1)

library.show_all_books()

以上代码实现了一个简单的图书管理系统，包括添加图书、删除图书、搜索图书和展示所有图书等功能。在这个示例中，我们用类来表示图书和图书馆，每本书有标题、作者、类型和年份等属性，而图书馆则包含了所有的书，并提供了各种管理功能。