using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(<p(.*?)>)([[:space:]]+?|.*?|[[:space:]]+?)(<\/p>)";
string substitution = @"$0 <img src=""imagem.jpg"">";
string input = @"<p>Some text 1</p>
<p>Some text 2</p>
<p>Some text 3</p>";
Regex regex = new Regex(pattern);
string result = regex.Replace(input, substitution);
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx