how to create file directory

 using System;
using System.IO;
public class A
{
    public static void Main(String[] args)
    {
        DirectoryInfo df = new DirectoryInfo("D://alok2.Txt");
        if (df.Exists)
        {
            Console.WriteLine("the Directory is exist");
        }
        else
        {
            Console.WriteLine("the Directory does not exist");
            df.Create();
            Console.WriteLine("the file is created");
            
        }
    }
}