CaptchaRecogition.gp_down.GetVCodeFromFile C# (CSharp) 메소드

        public void GetVCodeFromFile()
        {
            Random r = new Random();
            if (string.IsNullOrEmpty(vcodeFile ))
            {
                vcodeFile = "captcha\\shanghailigong";
            }
        var pics=   Directory.GetFiles(vcodeFile,"*.*",SearchOption.TopDirectoryOnly).Where(f=>f.EndsWith(".jpg")||f.EndsWith (".png")).ToList ();
            string url = pics[r.Next (0,pics.Count )];
            imgurl = url;
            Image img = Image.FromFile(url);
            pictureBox1.Image = img;
            pborigin.Load(url);
        }
        /// <summary>