c# Log

static void Log(string message, string path = "LOG.txt")
{
    Console.WriteLine(message);
    using (System.IO.FileStream sw = new System.IO.FileStream(path, System.IO.FileMode.Append))
    {
        using (System.IO.StreamWriter sw2 = new System.IO.StreamWriter(sw))
        {
            sw2.WriteLine(message);
        }
    }
}