图书系统小练习

下面是一个简单的图书系统小练习，包含了一些代码示例和代码注释。

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

    def display_info(self):
        print(fTitle: {self.title})
        print(fAuthor: {self.author})
        print(fYear: {self.year})


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

    def add_book(self book):
        self.books.append(book)

    def remove_book(self book):
        self.books.remove(book)

    def display_books(self):
        for book in self.books:
            book.display_info()


# 创建几本书
book1 = Book(Python Crash Course Eric Matthes 2019)
book2 = Book(Clean Code Robert C. Martin 2008)
book3 = Book(The Pragmatic Programmer Andrew Hunt David Thomas 1999)

# 创建图书馆对象
library = Library()

# 添加书籍到图书馆
library.add_book(book1)
library.add_book(book2)
library.add_book(book3)

# 显示图书馆中的所有书籍
library.display_books()

# 移除一本书
library.remove_book(book2)

# 再次显示图书馆中的所有书籍
library.display_books()