我认为 range() 函数会返回一个列表,其中包含您放在括号内的参数.但是当我在 IDLE 中输入 range(4)
时,我得到 range(0, 4)
作为输出.同样,当我输入 print(range(4))
时,我也会得到 range(0, 4)
作为输出.我目前正在使用 python 3.5.
我目前正在使用以下电子书学习 python:如何像计算机科学家一样思考",在该电子书中,它们提供了活动代码块,您可以在其中运行 python 代码.当我在那里运行 print(range(4))
时,我确实得到了我期望的列表,即 [0, 1, 2, 3]
.p>
谁能给我解释一下?
提前致谢!
您正在阅读的书可能使用 Python 2,其中 range
返回一个列表.
在 Python 3 中,range
改为返回 不可变序列类型.
I thought that the range() function returns a list with the arguments that you have put inside the parentheses. But when I type range(4)
in IDLE, I get range(0, 4)
as output. Similarly, when I type print(range(4))
, I also get range(0, 4)
as output. I am currently using python 3.5.
I am currently studying python with the following eBook: "How To Think Like a Computer Scientist" and in that eBook, they provide active code blocks where you can run python code. And when I run print(range(4))
in there, I do get the list that I expected, i.e. [0, 1, 2, 3]
.
Can someone explain this to me?
Thanks in advance!
The book you are reading probably uses Python 2, where range
returns a list.
In Python 3, range
returns an immutable sequence type instead.
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