正则表达式来查找与一个特定的字符开头的单词 [英] Regex to find words that start with a specific character

问题描述

我想找到的话像一个特定的字符开头：

I am trying to find words starts with a specific character like:

Lorem存有#text二Lorem存有。
  你好吗。没关系。完成。
  现在的东西#else伪指令。

Lorem ipsum #text Second lorem ipsum. How #are You. It's ok. Done. Something #else now.

我需要得到所有单词以＃开头。所以我的预期结果是#text，#are，#else伪

I need to get all words starts with "#". so my expected results are #text, #are, #else

任何想法？

推荐答案

搜索：

• 未尝不是一个单词字符然后


• ＃


• 某些文字字符

所以，试试这个：

/(?<!\w)#\w+/

或者在C＃中它是这样的：

Or in C# it would look like this:

string s = "Lorem ipsum #text Second lorem ipsum. How #are You. It's ok. Done. Something #else now.";
foreach (Match match in Regex.Matches(s, @"(?<!\w)#\w+"))
{
    Console.WriteLine(match.Value);
}

输出：

#text
#are
#else

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