def a2(arg): if len(arg) > 2: del arg[2:] li = [12,13,14,15] a2(li) print(li) 相关文章： 2021-12-04 2022-12-23 2022-12-23 2022-12-23 2022-12-23 2022-12-23 2022-12-23 2022-12-23