WS中byte[]方式传送图片等方法

  [WebMethod]
        public byte[] GetPic()    //供客户端下载图片
        {
            byte[] pic = new byte[0];
            FileStream fs = new FileStream(@"C:\btn.jpg", FileMode.Open, FileAccess.Read);
            pic = new byte[fs.Length];
            fs.Read(pic, 0, pic.Length);
            fs.Close();
            return pic;
            

        }
        [WebMethod]
        public void Upload(byte[] f)  //供客户端上传图片
        {
            byte[] pic = f;
            FileStream fs = new FileStream(@"C:\test11.jpg", FileMode.CreateNew, FileAccess.Write);
            fs.Write(pic, 0, pic.Length);
            fs.Close();

        }