删除子列表中的字符

Question

我有一个子列表列表，格式如下：

[['1023869', '-0.137869328454', '0.318039373746', '1.243\n'], ['1023870', '-0.121434633793', '0.324670024328', '1.243\n']]

我想从子列表的最后一个元素中删除“\n”。

Answer 1

使用列表理解 rstrip:

[sublist[:-1] + [sublist[-1].rstrip()] for sublist in lst]

---

[['1023869', '-0.137869328454', '0.318039373746', '1.243'], 
 ['1023870', '-0.121434633793', '0.324670024328', '1.243']]

Answer 2

只是给定列表中可变的最后一个元素。

for subList in alist:
  subList[-1] = subList[-1][:-1]

>>> alist
>>> [['1023869', '-0.137869328454', '0.318039373746', '1.243'], ['1023870', '-0.121434633793', '0.324670024328', '1.243']]