擅长:python、mysql、java
<p>我不认为你在这里寻找的是遗产</p>
<p>你有一个图书馆,这个图书馆有一个书单。保持简单</p>
<pre><code>class Library:
## creates the library
def __init__(self):
self.books = []
## returns number of books
def number_of_books(self):
return len(self.books)
## adds a book to the list of books
def add_book(self, book):
self.books.append(book)
class Book:
## creates your book
def __init__(self, item_id, name):
self.item_id = item_id
self.name = name
localLibrary = Library() # create the library
new_book = Book(1,"Harry Potter") # create the book
localLibrary.add_book(new_book) # add the book to the library
print(localLibrary.number_of_books()) # display the number of books
## output -> 1 book in the library
</code></pre>