[英]Regular Expression Pattern for C# with matches
I am working on project where I need to find Frequency from a given text. 我正在研究需要从给定文本中找到频率的项目。 I wrote a Regular expression that try to detect frequency, however I am stuck with how C# handle it and how exactly I use it in my software 我写了一个正则表达式来尝试检测频率,但是我对C#的处理方式以及在软件中使用频率的方式一无所知
My regular experssion is (\\d*)(([,\\.]?\\s*((k|m)?hz)*)|(\\s*((k|m)?hz)*))$
我的常规表达式是(\\d*)(([,\\.]?\\s*((k|m)?hz)*)|(\\s*((k|m)?hz)*))$
And I am trying to find value from 我正在努力从中寻找价值
Further Explanation: 进一步说明:
Any help is appericated. 任何帮助都适用。
Running replace 运行替换
(\d+(?:[.,]\d+)?)\s*([KkMm]?[Hh][Zz])
for ($1 $2)
gives for ($1 $2)
给
(23,2 Hz)
(24,4 Hz)
(25,0 Hz)sadf
(26 Hz)
(27 Khz)
(28 hz)zhzhzhdhdwe
29
(30.4 Hz)
(31.8 Hz)
4343.(34.234 Khz)
65SD
Any corrections to desired behavior? 对所需行为有任何更正吗?
upd : this is with negative lookbehind and word boundary: upd :这是带有负向后看和单词边界的:
(?<![.,0-9])(\d+(?:[.,]\d+)?)\s*([KkMm]?[Hh][Zz])\b
(23,2 Hz)
(24,4 Hz)
25,0 Hzsadf
(26 Hz)
(27 Khz)
28hzzhzhzhdhdwe
29
(30.4 Hz)
(31.8 Hz)
4343.34.234 Khz
65SD
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