Django中的一对多查询

from django.db import models

class Author(models.Model):
    name = models.CharField(max_length=100)

class Book(models.Model):
    title = models.CharField(max_length=100)
    author = models.ForeignKey(Author, on_delete=models.CASCADE)

author1 = Author.objects.create(name='John Smith')
author2 = Author.objects.create(name='Jane Doe')

book1 = Book.objects.create(title='Book 1', author=author1)
book2 = Book.objects.create(title='Book 2', author=author1)
book3 = Book.objects.create(title='Book 3', author=author2)

author = Author.objects.get(name='John Smith')
books = author.book_set.all()

for book in books:
    print(book.title)