python正则表达式去除重复单词 [英] python regular expression to remove repeated words

问题描述

我是 Python 新手

I am very new a Python

如果有重复的话，我想换句.

I want to change sentence if there are repeated words.

正确

• 例如.这真是太好了"-->这真是太好了"
• 例如.这就是就是"-->这就是"

现在我正在使用这个 reg.但它确实在字母上发生了变化.前任.我的朋友和我很高兴"-->我的朋友和我很高兴"(删除了i"和空格)错误

Right now am I using this reg. but it do all so change on letters. Ex. "My friend and i is happy" --> "My friend and is happy" (it remove the "i" and space) ERROR

text = re.sub(r'(\w+)\1', r'\1', text) #remove duplicated words in row

如何进行相同的更改，但必须检查单词而不是字母?

How can I do the same change but instead of letters it have to check on words?

推荐答案

text = re.sub(r'\b(\w+)( \1\b)+', r'\1', text) #remove duplicated words in row

\b 匹配空字符串，但只在单词的开头或结尾.

The \b matches the empty string, but only at the beginning or end of a word.

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