using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"<ul class=\""itens\""><li class=\"".*?\"">(.*?)<\/li><\/ul>";
string input = @"<div class=""boxAssistir""><h2 class=""titulo"">Selecione o Player desejado para Assistir</h2><ul class=""itens""><li class=""video1""><div class=""icon""><div class=""symbol""></div></div>OpenLoad</li><li class=""video2""><div class=""icon""><div class=""symbol""></div></div>Ok</li><li class=""video3""><div class=""icon""><div class=""symbol""></div></div>Streamin</li><li class=""video4""><div class=""icon""><div class=""symbol""></div></div>Vidzi</li></ul><ul class=""videos""><li class=""video1-code""><iframe src=""https://openload.co/embed/mGJOi4WB9uU/"" scrolling=""no"" frameborder=""0"" width=""538"" height=""408"" allowfullscreen=""true"" webkitallowfullscreen=""true"" mozallowfullscreen=""true""></iframe></li><li class=""video2-code""><iframe width=""538"" height=""408"" data-src=""http://ok.ru/videoembed/83266570810"" frameborder=""0"" allowfullscreen></iframe></li><li class=""video3-code""><iframe data-src=""http://streamin.to/embed-d0i8to43pywp-538x408.html"" width=""538"" height=""408"" frameborder=""0"" scrolling=""no""></iframe></li><li class=""video4-code""><iframe data-src=""http://vidzi.tv/embed-n6ssttynwolm-538x408.html"" width=""538"" height=""408"" frameborder=""0"" scrolling=""no""></iframe></li></ul></div>";
RegexOptions options = RegexOptions.Singleline;
Match m = Regex.Match(input, pattern, options);
Console.WriteLine("'{0}' found at index {1}", m.Value, m.Index);
}
}
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