create a regular expression based on numbers in the names of files in a folder in csharp

main.cs
using System.IO;
using System.Text.RegularExpressions;

// Path to the folder containing the files
string folderPath = @"C:\Users\Username\Documents\Files";

// Regular expression pattern to match numbers in file names
string pattern = @"\d+";

// Get all the files in the folder
string[] files = Directory.GetFiles(folderPath);

// Loop through each file
foreach (string file in files)
{
    // Get the file name without the extension
    string fileNameWithoutExtension = Path.GetFileNameWithoutExtension(file);

    // Use regular expression to find all the numbers in the file name
    MatchCollection matches = Regex.Matches(fileNameWithoutExtension, pattern);

    // Loop through each match
    foreach (Match match in matches)
    {
        // Get the matched number
        int number = int.Parse(match.Value);

        // Do something with the number
        Console.WriteLine($"Found number {number} in file {file}");
    }
}
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