这段 Python 代码是什么结果？
l = (1, 2, [3, 4])
l[2] += [5, 6]
A. l 变为(1, 2, [3, 4, 5, 6])
B. 抛出 TypeError 异常: "'tuple' object does not support item assignment."
C. A 和 B 都是
D. A 和 B 都不是
这段 Python 代码是什么结果？
25 回复
>>> l = (1, 2, [3, 4])
>>> l[2] += [5, 6]
Traceback (most recent call last):
File “<string>”, line 1, in <module>
TypeError: ‘tuple’ object does not support item assignment
>>> l
(1, 2, [3, 4, 5, 6])
