将值附加到列表中的每个子列表

I have a list of list that I want to append a constant value to each sublist of the full list, for instance:

我有一个列表列表,我想在整个列表的每个子列表中附加一个常量值,例如:

_lst = [[1, 2], [3, 4], [5, 6]]

and I want to append 7 to each of the sublist so that _lst becomes:

我想在每个子列表中附加7,以便_lst变为:

[[1, 2, 7], [3, 4, 7], [5, 6, 7]]

Is there a good way to complete the job (such as using zip)? Thanks!

有没有一个好方法来完成这项工作(比如使用zip)?谢谢!

3 个解决方案

#1

for l in _lst:    l.append(7)

#2

_lst = [ele + [7] for ele in _lst]

#3

>>> tmp = [ i.append(7) for i in _lst ]>>> print _lst[[1, 2, 7], [3, 4, 7], [5, 6, 7]]