[list(g) for k, g in itertools.groupby(iterable)]

这正是 itertools.groupby 的用途.

This is exactly what itertools.groupby is for.

如果您希望将非连续数字分组，例如@Michal的评论中

If you want nonconsecutive numbers grouped, like in the comment by @Michal,

[list(g) for k, g in itertools.groupby(sorted(iterable))]