Question

我知道我有一些类似的问题，但是我找不到解决问题的方法。我有一个字符串是

"subject: Exercise Feedback Form
persona_id: bresse
Q1: Yes
Q1 comments: Yes everything was found A1
Q2: No
Q2 comments: No forgot to email me A2
Q3: Yes
Q3 comments: All was good A3
Q4: No
Q4 comments: It was terrible A4
Q5_comments: Get Alex to make it better






























subject: Issue With App
persona_id: bresse
comments: Facebook does not work comments feedback"

如您所见，中间有大量空白。我如何使用python删除它？

Answer 1

text是您的字符串：

import re
text = re.sub(r"\s{2,}", "", text)

Answer 2

您可以使用正则表达式并配置该表达式以将n个或多个空格/换行符/制表符/空格替换为一个空格：

import re

s = "hello     \n   world"
print(re.sub("\s{4,}"," ",s))

打印：

hello world

如果至少有四个空格，它将删除所有空格/换行符/制表符/所有内容（正则表达式中的\s），并且将仅替换一个空格（以避免分隔的单词被整理）替换后，您可以将其替换为换行符或不包含任何字符。

Answer 3

尝试一下：

s = """subject: Exercise Feedback Form
persona_id: bresse
Q1: Yes
Q1 comments: Yes everything was found A1
Q2: No
Q2 comments: No forgot to email me A2
Q3: Yes
Q3 comments: All was good A3
Q4: No
Q4 comments: It was terrible A4
Q5_comments: Get Alex to make it better






























subject: Issue With App
persona_id: bresse
comments: Facebook does not work comments feedback"""
s = s.replace("\n\n","")
print(s)

Answer 4

您可以使用re.sub：

import re
print(re.sub('(?<=\n)\s+\n', '', content))

输出：

"subject: Exercise Feedback Form
persona_id: bresse
Q1: Yes
Q1 comments: Yes everything was found A1
Q2: No
Q2 comments: No forgot to email me A2
Q3: Yes
Q3 comments: All was good A3
Q4: No
Q4 comments: It was terrible A4
Q5_comments: Get Alex to make it better
subject: Issue With App
persona_id: bresse
comments: Facebook does not work comments feedback"

Answer 5

不使用re：

删除无用的空间：

' '.join(text.split())

删除无用的\ n：

'\n'.join(filter(None, text.split('\n')))

如何从python字符串中删除大量空白？

5 个答案: