使用Rexex找到相同的三个单词 [英] find Same three word using Rexex

问题描述

嗨
我想在一个句子中找到相同的三个字

例如：这是适合所有人的好时候



我想找到好和换



我用过

Hi I would like to find same three word in a sentence
Eg: This is good good good time for for for all

I would like to find "good" and "for"

I used

\b(\w+)\s+\1\b

但是没有得到结果

but didn't get the result

推荐答案

试试这个：

Try this:

\b(\w+)\b\s+\1\b\s+\1\b

\ 1表示组1有效地引用（\w +）

，整个正则表达式找到重复三次的单词。

\1 means group 1 which refers to the (\w+)
effectively, the whole regex finds word that repeats thrice.

查看这些链接并深入了解正则表达式



1. 30分钟正则表达式教程 [ ^ ]



2. https://msdn.microsoft.com/en-us/library/ ms228595.aspx [ ^ ]



3. http://www.dotnetperls.com/regex -match [ ^ ]

Hi,
See these links and dig more about regular expression

1. The 30 Minute Regex Tutorial[^]

2. https://msdn.microsoft.com/en-us/library/ms228595.aspx[^]

3. http://www.dotnetperls.com/regex-match[^]

这不是Regex擅长的东西：它是文本处理器，而不是语法分析器。它不擅长比较值以确保它们是相同的。



相反，在C＃中使用string.Split将句子分成单个单词，然后要么用循环处理它们，要么用Linq处理它们 - 它会工作很多，更好，以后更容易阅读和修改。

That isn't really something a Regex is good at: it's a text processor, not a syntax analyser. It isn't good at comparing values to make sure they are the same.

Instead, do it in C# by using string.Split to break the sentence into individual words, and then either process them with a loop, or with Linq - it'll work a lot, lot better and be easier to read and modify later.

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