获取时时线。欢迎转载啊。

private void getnewpic(string num)
        {
            try
            {
                string url = @"http://image2.sinajs.cn/newchart/min/n/sh" + num + ".gif";
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

                System.IO.Stream s = request.GetResponse().GetResponseStream();
                Image img2 = System.Drawing.Bitmap.FromStream(s);
                s.Close();
                //生成Bitmap对像
                Bitmap img = new Bitmap(img2, 545, 300);
                //生成绘图对像
                Graphics g = Graphics.FromImage(img);
                //定义黑色画笔
                Pen Bp = new Pen(Color.Black);
                LinearGradientBrush Bluebrush = new LinearGradientBrush(new Rectangle(0, 0, img.Width, img.Height), Color.Blue, Color.Blue, 1.2F, true);
                LinearGradientBrush Transpentbrush = new LinearGradientBrush(new Rectangle(0, 0, img.Width, img.Height), Form1.DefaultBackColor, Form1.DefaultBackColor, 1.2F, true);
                //string info = " 曲线图生成时间：" + DateTime.Now.ToString();
                Font Tfont = new Font("Arial", 9);
                //g.DrawString(info, Tfont, Bluebrush, 40, 25);
                g.FillRectangle(Transpentbrush, 5, 287, 535, 15);
                g.FillRectangle(Transpentbrush, 497, 228, 35, 30);

                //保存绘制的图片
                MemoryStream stream = new MemoryStream();
                img.Save(stream, System.Drawing.Imaging.ImageFormat.Jpeg);
                this.pictureBox1.Image = img;
            }
            catch (Exception ex)
            {
            }
        }

 获取日K线。

private void getKpic(string num)
        {
            try
            {
                string url = @"http://image2.sinajs.cn/newchart/daily/n/sh" + num + ".gif";
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

                System.IO.Stream s = request.GetResponse().GetResponseStream();
                Image img2 = System.Drawing.Bitmap.FromStream(s);
                s.Close();
                //生成Bitmap对像
                Bitmap img = new Bitmap(img2,545, 300);
                //生成绘图对像
                Graphics g = Graphics.FromImage(img);
                //定义黑色画笔
                Pen Bp = new Pen(Color.Black);
                LinearGradientBrush Bluebrush = new LinearGradientBrush(new Rectangle(0, 0, img.Width, img.Height), Color.Blue, Color.Blue, 1.2F, true);
                LinearGradientBrush Transpentbrush = new LinearGradientBrush(new Rectangle(0, 0, img.Width, img.Height), Form1.DefaultBackColor, Form1.DefaultBackColor, 1.2F, true);
                //string info = " 曲线图生成时间：" + DateTime.Now.ToString();
                Font Tfont = new Font("Arial", 9);
                //g.DrawString(info, Tfont, Bluebrush, 40, 25);
                g.FillRectangle(Transpentbrush, 5, 287, 535, 15);

                //保存绘制的图片
                MemoryStream stream = new MemoryStream();
                img.Save(stream, System.Drawing.Imaging.ImageFormat.Jpeg);

                this.pictureBox1.Image = img;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }