我知道有一些與我類似的問題，但我找不到解決我的問題的方法。我有一個字符串，它是："subject: Exercise Feedback Formpersona_id: bresseQ1: YesQ1 comments: Yes everything was found A1Q2: NoQ2 comments: No forgot to email me A2Q3: YesQ3 comments: All was good A3Q4: NoQ4 comments: It was terrible A4Q5_comments: Get Alex to make it better如您所見，中間有大量空白。我將如何使用 python 刪除它？
4 回答
炎炎設計
TA貢獻1808條經驗 獲得超4個贊
您可以使用正則表達式并將表達式配置為用一個空格替換 n 個或多個空格/換行符/制表符/空格：
import re
s = "hello \n world"
print(re.sub("\s{4,}"," ",s))
印刷：
hello world
\s如果至少有 4 個空格/換行符/制表符/任何東西（在正則表達式中），它將在這里刪除所有空格，并且只替換一個空格（為了避免分隔的單詞在替換后被整理，您可以替換那個由換行符或無字符）。
海綿寶寶撒
TA貢獻1809條經驗 獲得超8個贊
試試這個：
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
一只斗牛犬
TA貢獻1784條經驗 獲得超2個贊
您可以使用re.sub：
import re
print(re.sub('(?<=\n)\s+\n', '', content))
輸出：
"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"
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