数组的子序列不为零

Question

我正在尝试编写代码来获取此表单列表的子序列:

l = [240,200,160,4,0,0,0,0,4,4,4,0,0,0,1,1,1,1]

基本上,我需要得到非零的子序列,所以我需要这种形式的输出:

output = [[255,200,160,4] , [4,4,4] , [1,1,1,1]]

谢谢.

Answer 1

连续的后续序列？博士Groupby博士,博士itertools.groupby:

>>> from itertools import groupby
>>> l = [240,200,160,4,0,0,0,0,4,4,4,0,0,0,1,1,1,1]
>>> [list(g) for k,g in groupby(l, lambda x: x != 0) if k]
[[240, 200, 160, 4], [4, 4, 4], [1, 1, 1, 1]]

或者即使我们采取的事实的优点bool(0)是False和bool(any other integer)是True:

>>> [list(g) for k,g in groupby(l, bool) if k]
[[240, 200, 160, 4], [4, 4, 4], [1, 1, 1, 1]]