using System;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
string s = "[1]Ali ahmadi,[2]Mohammad Razavi";
Regex regex = new Regex(@"\[(\d+)\]", RegexOptions.Compiled);
foreach (Match match in regex.Matches(s))
{
Console.WriteLine(match.Groups[1].Value);
}
}
}
dXNpbmcgU3lzdGVtOwp1c2luZyBTeXN0ZW0uVGV4dC5SZWd1bGFyRXhwcmVzc2lvbnM7CgpwdWJsaWMgY2xhc3MgVGVzdAp7CglwdWJsaWMgc3RhdGljIHZvaWQgTWFpbigpCgl7CgkJc3RyaW5nIHMgPSAiWzFdQWxpIGFobWFkaSxbMl1Nb2hhbW1hZCBSYXphdmkiOwoJCVJlZ2V4IHJlZ2V4ID0gbmV3IFJlZ2V4KEAiXFsoXGQrKVxdIiwgUmVnZXhPcHRpb25zLkNvbXBpbGVkKTsKCSAgICAgICAgZm9yZWFjaCAoTWF0Y2ggbWF0Y2ggaW4gcmVnZXguTWF0Y2hlcyhzKSkKICAgICAgICAgICAgCXsKCQkJQ29uc29sZS5Xcml0ZUxpbmUobWF0Y2guR3JvdXBzWzFdLlZhbHVlKTsKCQl9Cgl9Cn0=