How to cut out the necessary numbers from the link?

Question

Regular Expressions

Hello,
I need help with a regular expression. You need to get the number of the picture, which is present in the file name and is separated from other numbers by an underscore. In this example, it is number 08.

<img src='http://site.com/galleries/179606_08.jpg'/>

I forgot to clarify, you need a regular expression that is not tied to some kind of programming language
Thank you!

Answer 1

This can be checked from without regex: jsfiddle.net/afbccz3h/1

var img = document.getElementById('img'),
    url = img.getAttribute('src');

function getNum (url) {
    var parts = url.split('/'),
        len = parts.length,
        name = parts[len - 1],
        num = name.split('_')[1].split('.')[0];
    
    return num;
}

var num = getNum(url);

console.log(num); // 08

Answer 2

string tag = "<img src='http://site.com/galleries/1.79.6.06_238.jpg'/>";
string[] reg = Regex.Split(tag, "[_.]");
Console.WriteLine(reg[reg.Length-2]);