使用列表推导排除列表中处于一定范围内的项目 [英] Excluding items from a list that are in a certain range using list comprehension

问题描述

我有两个列表:a = [10.0,20.0]和b = [1.0,10.0,15.0,20.0,30.0,100.0]. 如何从列表b中删除10.0和20.0之间的所有元素?这是我尝试过的:

I have two lists: a = [10.0,20.0] and b = [1.0,10.0,15.0,20.0,30.0,100.0]. How can I remove from list b all the elements between 10.0 and 20.0? Here is what I tried:

c = [b[y] for y in range(len(b)) if (b[y] < a[0] or b[y] > a[1])]

我希望得到c = [1.0, 30.0, 100.0]，但是我得到c = [1.0,10.0,15.0,20.0,30.0,100.0].

I expect to get c = [1.0, 30.0, 100.0], but I get c = [1.0,10.0,15.0,20.0,30.0,100.0].

如何仅通过列表理解来排除列表中特定范围内的组件?

How can I exclude components from a list that are in a certain range by using only list comprehension?

推荐答案

您可以通过直接迭代b的元素来简化操作，但是您的原始代码也适用于我:

You can simplify by iterating b's elements directly, but your original code works for me, too:

a = [10.0, 20.0]
b = [1.0, 10.0, 15.0, 20.0, 30.0, 100.0]

c = [x for x in b if x < a[0] or x > a[1]]
# [1.0, 30.0, 100.0]

# Your version:
c = [b[y] for y in range(len(b)) if (b[y] < a[0] or b[y] > a[1])]
# [1.0, 30.0, 100.0]

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