using System;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
string ipv4 = @"\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}";
string s = @"naieofnai555aedae192.168.1.1andaiodane";
Match m = Regex.Match(s, ipv4);
if (m.Success)
{
Console.WriteLine("IP encontrado: {0}", m.Value);
}
}
}
dXNpbmcgU3lzdGVtOwp1c2luZyBTeXN0ZW0uVGV4dC5SZWd1bGFyRXhwcmVzc2lvbnM7CgpwdWJsaWMgY2xhc3MgVGVzdAp7CglwdWJsaWMgc3RhdGljIHZvaWQgTWFpbigpCgl7CgkgICAgc3RyaW5nIGlwdjQgPSBAIlxkezEsM31cLlxkezEsM31cLlxkezEsM31cLlxkezEsM30iOwoJICAgIHN0cmluZyBzICAgPSBAIm5haWVvZm5haTU1NWFlZGFlMTkyLjE2OC4xLjFhbmRhaW9kYW5lIjsKCSAgICAKCSAgICBNYXRjaCBtID0gUmVnZXguTWF0Y2gocywgaXB2NCk7CgkgICAgaWYgKG0uU3VjY2VzcykKCSAgICB7CgkgICAgICAgIENvbnNvbGUuV3JpdGVMaW5lKCJJUCBlbmNvbnRyYWRvOiB7MH0iLCBtLlZhbHVlKTsKCSAgICB9Cgl9Cn0=