using System;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
Uri uri = new UriBuilder("www.myweb.com/api/v1/customer").Uri;
string versionString = uri.Segments[2]; // v1/
int version = int.Parse(Regex.Match(versionString, @"\d+").Value);
Console.WriteLine(version);
}
}
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