Python 删除两个列表之间的公共元素

Removing the common elements between two lists

提问by OneMoreError

Possible Duplicate:
Python list subtraction operation

可能的重复：
Python 列表减法操作

I want to remove the common elements between two lists. I mean something like this

我想删除两个列表之间的公共元素。我的意思是这样的

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a=[1,2,3,4,5,6,7,8]
b=[2,4,1]
# I want the result to be like
res=[3,5,6,7,8]

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Is there any simple pythonic way to do this ?

有没有简单的pythonic方法来做到这一点？

采纳答案by dugres

use sets :

使用集：

res = list(set(a)^set(b))

回答by dugres

You can use sets learn more from here

您可以使用集合从这里了解更多信息

print(set(a).difference(b))