c# - Regular expression find and replace to wrap tags -

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does know how use regex find , replace word with

<b>[keyword]</b>

i tried use regex.replace() seems support direct replacement instead of appending <b></b> @ begin , last of keyword.

example:

hello world!

keyword:

hello

output:

<b>hello</b> world!

you may try this:

using system; using system.text.regularexpressions;  class program {     static void main(string[] args)     {         string             input = "hello world!",             keyword = "hello";          var result = regex             .replace(input, keyword, m =>                  string.format("<b>{0}</b>", m.value));         console.writeline(result);     } }

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