回答編集履歴
1
エラーの再現を追記
test
CHANGED
|
@@ -19,3 +19,21 @@
|
|
|
19
19
|
|
|
20
20
|
|
|
21
21
|
print関数の戻り値は常にNoneです。
|
|
22
|
+
|
|
23
|
+
|
|
24
|
+
|
|
25
|
+
エラーの再現
|
|
26
|
+
|
|
27
|
+
---
|
|
28
|
+
|
|
29
|
+
```Python
|
|
30
|
+
|
|
31
|
+
>>> None[0]
|
|
32
|
+
|
|
33
|
+
Traceback (most recent call last):
|
|
34
|
+
|
|
35
|
+
File "<stdin>", line 1, in <module>
|
|
36
|
+
|
|
37
|
+
TypeError: 'NoneType' object is not subscriptable
|
|
38
|
+
|
|
39
|
+
```
|