a = set(a)
a.discard("b")
a = list(a)
On 6月1日, 下午8时48分, DiveIntoGAE <taogf1...@gmail.com> wrote:
> >>> a=["b","c","t","y","b","b","b","b"]
> >>> a
>
> ['b', 'c', 't', 'y', 'b', 'b', 'b', 'b']>>> for i in a:
>
> a.remove("b") # why can't i remove all the "b" from list a?
>
> >>> a
>
> ['c', 't', 'y', 'b'] # this is the result after the for cycle>>>
> a.remove("b")
> >>> a
>
> ['c', 't', 'y'] # i need to remove the last "b" a second time
>
>
>
>
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