Python 3将范围转换为列表 [英] Python 3 turn range to a list

问题描述

我试图做一个数字1-1000的列表。显然，这将是恼人的写/读，所以我试图做一个范围在它的列表。在python 2似乎
some_list = range（1,1000）
将工作，但在python 3范围类似于python 2的xrange？

I'm trying to make a list with numbers 1-1000 in it. Obviously this would be annoying to write/read, so I'm attempting to make a list with a range in it. In python 2 it seems that some_list = range(1,1000) would have worked, but in python 3 the range is similar to the xrange of python 2? Can anyone provide some insight into this?

推荐答案

你可以从范围对象构造一个列表：

You can just construct a list from the range object:

my_list=list(range(1,1001))

这也是如何使用python2.x中的生成器。一般来说，你可能不需要一个列表，因为你可以通过 my_list [i] 的值更有效地（ i + 1 ），如果你只需要遍历它，你可以回到 range 。

This is how you do it with generators in python2.x as well. Typically speaking, you probably don't need a list though since you can come by the value of my_list[i] more efficiently (i+1), and if you just need to iterate over it, you can just fall back on range.

另外请注意，在python2.x上， xrange 仍然可索引 ¹ 。这意味着python3.x上的 range 也具有相同的属性 ²

Also note that on python2.x, xrange is still indexable¹. This means that range on python3.x also has the same property²

sup> ¹

^{2 在python3.x中 1 的类似语句是 print（range（30）[12] / code>，并且也工作。}

^{2The analogous statement to 1 in python3.x is print(range(30)[12]) and that works also.}

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