在List<int>中查找逗号分隔的字符串值

using System;
using System.Collections.Generic;

public class Program
{
    public static List<int> FindCommaSeparatedValues(List<int> numbers, string commaSeparatedString)
    {
        List<int> result = new List<int>();

        string[] stringValues = commaSeparatedString.Split(',');

        foreach (string stringValue in stringValues)
        {
            int value;
            if (int.TryParse(stringValue, out value) && numbers.Contains(value))
            {
                result.Add(value);
            }
        }

        return result;
    }

    public static void Main(string[] args)
    {
        List<int> numbers = new List<int> { 1, 2, 3, 4, 5 };
        string commaSeparatedString = "2,4,6,8";

        List<int> result = FindCommaSeparatedValues(numbers, commaSeparatedString);

        Console.WriteLine("Result: ");
        foreach (int value in result)
        {
            Console.WriteLine(value);
        }
    }
}