您的位置：首页 > 其它

Delete Last Element

2016-03-01 21:56 561 查看


List method
to delete last element in list as well
as all elements






up
vote13down
votefavorite
1

yo folks, I have an issue with clearing lists. In the current program which I'm coding, I have a method that clears a certain number of lists. This is rather inconvenient since during one part of the program where this method is used, it would be a lot more
helpful if it only deleted the last elementfrom the lists. Is there anyway in which I can set index numbers as parameters to my method to solve this problem?

The code for the method
def clearLists(self):
del self.Ans[:]
del self.masses[:]


Whenever I want to use this method, I merely write self.ClearLists() and it deletes every element in a list.

python list methods element
shareimprove
this question
edited Dec
2 '11 at 14:59

asked Dec 2 '11 at 14:52





user1036197
81114

2
I don't see the relation between the question title and body. – fortran Dec
2 '11 at 14:54
Sorry about that, that was a leftover from an old, unposted question, now fixxxed. – user1036197 Dec
2 '11 at 14:59
3
If you don't want to clear your lists, why would you call a method called 
clearLists
? – Wooble Dec
2 '11 at 15:07
1
Am I the only what that do not understand what are you looking for? – Tadeck Dec
2 '11 at 15:52
add
a comment


2 Answers

activeoldestvotes

up vote35down
vote
you can use 
lst.pop()
or 
del
lst[-1]


shareimprove
this answer
answered Dec 2 '11 at 14:54





fortran
35k1278130

that pop() method rocks, thanks – armani Nov
18 '14 at 22:49
pop()
removes
and returns the item, in case you don't want have a return use 
del
;) – flacle 2
days ago
add
a comment





up vote4down
vote
To delete the last element of the lists, you could use:
def deleteLast(self):
if len(self.Ans) > 0:
del self.Ans[-1]
if len(self.masses) > 0:
del self.masses[-1]


内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理 点击这里给我发消息
标签： 
相关文章推荐
新的分享
章节导航