freeCodeCamp/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/objects-a-sample-class.md

id, title, challengeType, videoId, bilibiliIds, dashedName

id	title	challengeType	videoId	bilibiliIds	dashedName
5e7b9f160b6c005b0e76f086	对象：一个示例类	11	FiABKEuaSJ8	aid bvid cid 589451777 BV1rq4y1X7TG 377523194	objects-a-sample-class

--question--

--text--

以下程序将打印什么？

class PartyAnimal:
    x = 0
    def party(self):
        self.x = self.x + 2
        print(self.x)

an = PartyAnimal()
an.party()
an.party()

--answers--

So far 1
So far 2

---

0
0

---

2
2

---

2
4

--video-solution--

4