Python 从字符串中删除最后一个字符
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Remove final character from string
提问by user1675111
Let's say my string is 10 characters long.
假设我的字符串长度为 10 个字符。
How do I remove the last character?
如何删除最后一个字符？
If my string is "abcdefghij"(I do not want to replace the 'j'character, since my string may contain multiple 'j'characters) I only want the last character gone. Regardless of what it is or how many times it occurs, I need to remove the last character from my string.
如果我的字符串是"abcdefghij"（我不想替换该'j'字符，因为我的字符串可能包含多个'j'字符）我只希望最后一个字符消失。无论它是什么或出现多少次，我都需要从我的字符串中删除最后一个字符。
回答by Cyrille
Simple:
简单的：
st = "abcdefghij"
st = st[:-1]
There is also another way that shows how it is done with steps:
还有另一种方式显示它是如何通过步骤完成的：
list1 = "abcdefghij"
list2 = list(list1)
print(list2)
list3 = list2[:-1]
print(list3)
This is also a way with user input:
这也是用户输入的一种方式：
list1 = input ("Enter :")
list2 = list(list1)
print(list2)
list3 = list2[:-1]
print(list3)
To make it take away the last word in a list:
让它去掉列表中的最后一个词：
list1 = input("Enter :")
list2 = list1.split()
print(list2)
list3 = list2[:-1]
print(list3)
回答by u1860929
What you are trying to do is an extension of string slicingin Python:
您要做的是在 Python 中扩展字符串切片：
Say all strings are of length 10, last char to be removed:
假设所有字符串的长度为 10，最后一个字符被删除：
>>> st[:9]
'abcdefghi'
To remove last Ncharacters:
删除最后一个N字符：
>>> N = 3
>>> st[:-N]
'abcdefg'
