2021-05-05 10:13:49 -07:00
|
|
|
|
---
|
|
|
|
|
id: 5e7b9f070b6c005b0e76f061
|
2021-06-23 21:35:24 +05:30
|
|
|
|
title: 中間字符串
|
2021-05-05 10:13:49 -07:00
|
|
|
|
challengeType: 11
|
|
|
|
|
videoId: KgT_fYLXnyk
|
2021-10-03 12:24:27 -07:00
|
|
|
|
bilibiliIds:
|
|
|
|
|
aid: 291983121
|
|
|
|
|
bvid: BV1Zf4y157yG
|
|
|
|
|
cid: 376394116
|
2021-05-05 10:13:49 -07:00
|
|
|
|
dashedName: intermediate-strings
|
|
|
|
|
---
|
|
|
|
|
|
|
|
|
|
# --description--
|
|
|
|
|
|
2021-06-23 21:35:24 +05:30
|
|
|
|
更多資料:
|
2021-05-05 10:13:49 -07:00
|
|
|
|
|
2021-06-23 21:35:24 +05:30
|
|
|
|
[練習](https://www.youtube.com/watch?v=1bSqHot-KwE)
|
2021-05-05 10:13:49 -07:00
|
|
|
|
|
|
|
|
|
# --question--
|
|
|
|
|
|
|
|
|
|
## --text--
|
|
|
|
|
|
2021-06-23 21:35:24 +05:30
|
|
|
|
下面的代碼中 i 的值是什麼?
|
2021-05-05 10:13:49 -07:00
|
|
|
|
|
|
|
|
|
```python
|
|
|
|
|
word = "bananana"
|
|
|
|
|
i = word.find("na")
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
## --answers--
|
|
|
|
|
|
|
|
|
|
nanana
|
|
|
|
|
|
|
|
|
|
---
|
|
|
|
|
|
|
|
|
|
2
|
|
|
|
|
|
|
|
|
|
---
|
|
|
|
|
|
|
|
|
|
3
|
|
|
|
|
|
|
|
|
|
---
|
|
|
|
|
|
2021-06-23 21:35:24 +05:30
|
|
|
|
True(真)
|
2021-05-05 10:13:49 -07:00
|
|
|
|
|
|
|
|
|
---
|
|
|
|
|
|
|
|
|
|
na
|
|
|
|
|
|
|
|
|
|
## --video-solution--
|
|
|
|
|
|
|
|
|
|
2
|
|
|
|
|
|