Rename Field

欄位名稱很重要，它們幫助人們了解程式。
隨著經驗增加，對資料的了解也增加時，將新見解植入程式就非常重要。

# Before
class Book:
    def __init__(self, title, author, numPages):
        self.title = title
        self.author = author
        self.numPages = numPages

    def print_book_details(self):
        print(f"Title: {self.title}, Author: {self.author}, Number of Pages: {self.numPages}")

# After
class Book:
    def __init__(self, title, author, number_of_pages):
        self.title = title
        self.author = author
        self.number_of_pages = number_of_pages

    def print_book_details(self):
        print(f"Title: {self.title}, Author: {self.author}, Number of Pages: {self.number_of_pages}")