static void Main(string[] args)
{
    string path = ".";
    if (args.Length > 0)
    {
        if (Directory.Exists(args[0]))
        {
            path = args[0];
        }
    }

    DirectoryInfo di = new DirectoryInfo(path);
    foreach (var item in di.GetFiles("*.txt"))
    {
        string name = item.Name;
        long size = item.Length;
        DateTime createDate = item.CreationTime;
        Console.WriteLine($"Name:{name},Size:{size},CreateDate:{createDate}");
    }
}

d:

cd D:\代码\疯狂代码\XJBX\ConsoleApp1\ConsoleApp6\bin\Debug

ConsoleApp6.exe D:\代码\疯狂代码\XJBX\ConsoleApp1\ConsoleApp6\bin\Debug\test.txt