【.NET】上传文件，生成缩略图

类名：Upload

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Web.Util;


namespace Tools
{
    /// <summary>
    /// UploadPic 的摘要说明。
    /// </summary>
    public class UploadPic
    {
        #region 构造函数
        public UploadPic()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //
        }
        #endregion
        #region 上传图片，并生成缩略图
        public string upload(System.Web.UI.HtmlControls.HtmlInputFile UploadFile, int tWidth, int tHeight)
        {
            string result = "";
            //检查上传文件的格式是否有效 
            if(UploadFile.PostedFile.ContentType.ToLower().IndexOf("image") < 0)
            {
                result = "上传图片格式无效!";
                return result;
            }

            //生成原图 
            Byte[] oFileByte = new byte[UploadFile.PostedFile.ContentLength];
            System.IO.Stream oStream = UploadFile.PostedFile.InputStream;
            System.Drawing.Image oImage = System.Drawing.Image.FromStream(oStream);

            int oWidth = oImage.Width; //原图宽度 
            int oHeight = oImage.Height; //原图高度  
            if(oWidth < tWidth && oHeight < tHeight)
            {
                result = "smaller";
                return result;
            }
            //按比例计算出缩略图的宽度和高度 
            if(oWidth >= oHeight)
            {
                tHeight = (int)Math.Floor(Convert.ToDouble(oHeight) * (Convert.ToDouble(tWidth) / Convert.ToDouble(oWidth)));
            }
            else
            {
                tWidth = (int)Math.Floor(Convert.ToDouble(oWidth) * (Convert.ToDouble(tHeight) / Convert.ToDouble(oHeight)));
            }

            //生成缩略原图 
            Bitmap tImage = new Bitmap(tWidth, tHeight);
            Graphics g = Graphics.FromImage(tImage);
            g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High; //设置高质量插值法 
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;//设置高质量,低速度呈现平滑程度 
            g.Clear(Color.Transparent); //清空画布并以透明背景色填充 
            g.DrawImage(oImage, new Rectangle(0, 0, tWidth, tHeight), new Rectangle(0, 0, oWidth, oHeight), GraphicsUnit.Pixel);
            string file = DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + ".jpg";
            string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../UploadImg/") + file;//保存原图的物理路径 
            string tFullName = System.Web.HttpContext.Current.Server.MapPath("../../UploadImg/") + file; //保存缩略图的物理路径 
            result = file;
            try
            {
                //以JPG格式保存图片 
                oImage.Save(oFullName, System.Drawing.Imaging.ImageFormat.Jpeg);
                tImage.Save(tFullName, System.Drawing.Imaging.ImageFormat.Jpeg);
            }
            catch(Exception ex)
            {
                throw ex;
            }
            finally
            {
                //释放资源 
                oImage.Dispose();
                g.Dispose();
                tImage.Dispose();

            }
            return result;
        }
        public string uploadPNGSIZE(System.Web.UI.HtmlControls.HtmlInputFile UploadFile, int tWidth, int tHeight)
        {
            string result = "";
            //检查上传文件的格式是否有效 
            if(UploadFile.PostedFile.ContentType.ToLower().IndexOf("image") < 0)
            {
                result = "上传图片格式无效!";
                return result;
            }

            //生成原图 
            Byte[] oFileByte = new byte[UploadFile.PostedFile.ContentLength];
            System.IO.Stream oStream = UploadFile.PostedFile.InputStream;
            System.Drawing.Image oImage = System.Drawing.Image.FromStream(oStream);

            int oWidth = oImage.Width; //原图宽度 
            int oHeight = oImage.Height; //原图高度  
            if(oWidth < tWidth && oHeight < tHeight)
            {
                result = "smaller";
                return result;
            }
            //按比例计算出缩略图的宽度和高度 
            if(oWidth >= oHeight)
            {
                tHeight = (int)Math.Floor(Convert.ToDouble(oHeight) * (Convert.ToDouble(tWidth) / Convert.ToDouble(oWidth)));
            }
            else
            {
                tWidth = (int)Math.Floor(Convert.ToDouble(oWidth) * (Convert.ToDouble(tHeight) / Convert.ToDouble(oHeight)));
            }

            //生成缩略原图 
            Bitmap tImage = new Bitmap(tWidth, tHeight);
            Graphics g = Graphics.FromImage(tImage);
            g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High; //设置高质量插值法 
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;//设置高质量,低速度呈现平滑程度 
            g.Clear(Color.Transparent); //清空画布并以透明背景色填充 
            g.DrawImage(oImage, new Rectangle(0, 0, tWidth, tHeight), new Rectangle(0, 0, oWidth, oHeight), GraphicsUnit.Pixel);
            string file = DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + ".jpg";
            string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../images/") + file;//保存原图的物理路径 
            string tFullName = System.Web.HttpContext.Current.Server.MapPath("../../images/") + file; //保存缩略图的物理路径 
            result = file;
            try
            {
                //以JPG格式保存图片 
                oImage.Save(oFullName, System.Drawing.Imaging.ImageFormat.Png);
                tImage.Save(tFullName, System.Drawing.Imaging.ImageFormat.Png);
            }
            catch(Exception ex)
            {
                throw ex;
            }
            finally
            {
                //释放资源 
                oImage.Dispose();
                g.Dispose();
                tImage.Dispose();

            }
            return result;
        }

        #endregion

        public string upload_watermark(System.Web.UI.HtmlControls.HtmlInputFile UploadFile, int tWidth, int tHeight)
        {
            string filetype = System.IO.Path.GetExtension(UploadFile.PostedFile.FileName);
            string result = "";
            //检查上传文件的格式是否有效 
            if(UploadFile.PostedFile.ContentType.ToLower().IndexOf("image") < 0)
            {
                result = "上传图片格式无效!";
                return result;
            }

            //生成原图 
            Byte[] oFileByte = new byte[UploadFile.PostedFile.ContentLength];
            System.IO.Stream oStream = UploadFile.PostedFile.InputStream;
            System.Drawing.Image oImage = System.Drawing.Image.FromStream(oStream);
            //加水印
            System.Drawing.Image copyImage = System.Drawing.Image.FromFile(System.Web.HttpContext.Current.Server.MapPath("../../UploadImg/") + "watermark.png");
            Graphics g_water = Graphics.FromImage(oImage);
            g_water.DrawImage(copyImage, new Rectangle(oImage.Width - copyImage.Width, 50, copyImage.Width, copyImage.Height), 10, 20, copyImage.Width, copyImage.Height, GraphicsUnit.Pixel);
            g_water.Dispose();


            int oWidth = oImage.Width; //原图宽度 
            int oHeight = oImage.Height; //原图高度  
            if(oWidth < tWidth && oHeight < tHeight)
            {
                result = "smaller";
                return result;
            }
            //按比例计算出缩略图的宽度和高度 
            if(oWidth >= oHeight)
            {
                tHeight = (int)Math.Floor(Convert.ToDouble(oHeight) * (Convert.ToDouble(tWidth) / Convert.ToDouble(oWidth)));
            }
            else
            {
                tWidth = (int)Math.Floor(Convert.ToDouble(oWidth) * (Convert.ToDouble(tHeight) / Convert.ToDouble(oHeight)));
            }

            //生成缩略原图 
            Bitmap tImage = new Bitmap(tWidth, tHeight);
            Graphics g = Graphics.FromImage(tImage);
            g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High; //设置高质量插值法 
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;//设置高质量,低速度呈现平滑程度 
            g.Clear(Color.Transparent); //清空画布并以透明背景色填充 
            g.DrawImage(oImage, new Rectangle(0, 0, tWidth, tHeight), new Rectangle(0, 0, oWidth, oHeight), GraphicsUnit.Pixel);
            string file = DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + filetype;
            string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../UploadImg/") + file;//保存原图的物理路径 
            string tFullName = System.Web.HttpContext.Current.Server.MapPath("../../UploadImg/") + file; //保存缩略图的物理路径 
            result = file;
            try
            {
                //以不同格式保存图片 
                if(filetype.Trim().ToLower().CompareTo(".png") == 0)
                {
                    oImage.Save(oFullName, System.Drawing.Imaging.ImageFormat.Png);
                    tImage.Save(tFullName, System.Drawing.Imaging.ImageFormat.Png);
                }
                else
                {
                    oImage.Save(oFullName, System.Drawing.Imaging.ImageFormat.Jpeg);
                    tImage.Save(tFullName, System.Drawing.Imaging.ImageFormat.Jpeg);
                }



            }
            catch(Exception ex)
            {
                throw ex;
            }
            finally
            {
                //释放资源 
                oImage.Dispose();
                g.Dispose();
                tImage.Dispose();

            }
            return result;
        }
        public string upload_watermark_origin(System.Web.UI.HtmlControls.HtmlInputFile UploadFile)
        {
            int tWidth = 0, tHeight = 0;
            string filetype = System.IO.Path.GetExtension(UploadFile.PostedFile.FileName);
            string result = "";
            //检查上传文件的格式是否有效 
            if(UploadFile.PostedFile.ContentType.ToLower().IndexOf("image") < 0)
            {
                result = "上传图片格式无效!";
                return result;
            }

            //生成原图 
            Byte[] oFileByte = new byte[UploadFile.PostedFile.ContentLength];
            System.IO.Stream oStream = UploadFile.PostedFile.InputStream;
            System.Drawing.Image oImage = System.Drawing.Image.FromStream(oStream);
            //加水印
            System.Drawing.Image copyImage = System.Drawing.Image.FromFile(System.Web.HttpContext.Current.Server.MapPath("../../UploadImg/") + "watermark.png");
            Graphics g_water = Graphics.FromImage(oImage);
            g_water.DrawImage(copyImage, new Rectangle(oImage.Width - copyImage.Width, 50, copyImage.Width, copyImage.Height), 10, 20, copyImage.Width, copyImage.Height, GraphicsUnit.Pixel);
            g_water.Dispose();


            int oWidth = oImage.Width; //原图宽度 
            tWidth = oWidth;
            int oHeight = oImage.Height; //原图高度  
            tHeight = oHeight;

            if(oWidth < tWidth && oHeight < tHeight)
            {
                result = "smaller";
                return result;
            }
            //按比例计算出缩略图的宽度和高度 
            if(oWidth >= oHeight)
            {
                tHeight = (int)Math.Floor(Convert.ToDouble(oHeight) * (Convert.ToDouble(tWidth) / Convert.ToDouble(oWidth)));
            }
            else
            {
                tWidth = (int)Math.Floor(Convert.ToDouble(oWidth) * (Convert.ToDouble(tHeight) / Convert.ToDouble(oHeight)));
            }

            //生成缩略原图 
            Bitmap tImage = new Bitmap(tWidth, tHeight);
            Graphics g = Graphics.FromImage(tImage);
            g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High; //设置高质量插值法 
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;//设置高质量,低速度呈现平滑程度 
            g.Clear(Color.Transparent); //清空画布并以透明背景色填充 
            g.DrawImage(oImage, new Rectangle(0, 0, tWidth, tHeight), new Rectangle(0, 0, oWidth, oHeight), GraphicsUnit.Pixel);
            string file = DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + filetype;
            string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../UploadImg/") + file;//保存原图的物理路径 
            string tFullName = System.Web.HttpContext.Current.Server.MapPath("../../UploadImg/") + file; //保存缩略图的物理路径 
            result = file;
            try
            {
                //以不同格式保存图片 
                if(filetype.Trim().ToLower().CompareTo(".png") == 0)
                {
                    oImage.Save(oFullName, System.Drawing.Imaging.ImageFormat.Png);
                    tImage.Save(tFullName, System.Drawing.Imaging.ImageFormat.Png);
                }
                else
                {
                    oImage.Save(oFullName, System.Drawing.Imaging.ImageFormat.Jpeg);
                    tImage.Save(tFullName, System.Drawing.Imaging.ImageFormat.Jpeg);
                }



            }
            catch(Exception ex)
            {
                throw ex;
            }
            finally
            {
                //释放资源 
                oImage.Dispose();
                g.Dispose();
                tImage.Dispose();

            }
            return result;
        }

        #region 上传图片
        public string uploadDirect(System.Web.UI.HtmlControls.HtmlInputFile UploadFile)
        {
            string filetype = System.IO.Path.GetExtension(UploadFile.PostedFile.FileName);
            string result = "";
            //检查上传文件的格式是否有效 
            if(UploadFile.PostedFile.ContentType.ToLower().IndexOf("image") >= 0)
            {
                if(UploadFile.PostedFile.ContentType.ToLower().IndexOf("image") < 0)
                {
                    result = "上传图片格式无效!";
                    return result;
                }

                //生成原图 
                System.IO.Stream oStream = UploadFile.PostedFile.InputStream;

                System.Drawing.Image oImage = System.Drawing.Image.FromStream(oStream);
                string file = DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + filetype;
                string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../UploadImg/") + file;//保存原图的物理路径 
                result = file;
                try
                {
                    //以不同格式保存图片 
                    if(filetype.Trim().ToLower().CompareTo(".png") == 0)
                    {
                        oImage.Save(oFullName, System.Drawing.Imaging.ImageFormat.Png);
                    }
                    else
                    {
                        oImage.Save(oFullName, System.Drawing.Imaging.ImageFormat.Jpeg);
                    }
                }
                catch(Exception ex)
                {
                    //抛出异常
                    throw ex;
                }
                finally
                {
                    //释放资源 
                    oImage.Dispose();

                }
            }
            else
            {
                string file = DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + filetype;
                string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../file/") + file;//保存原图的物理路径 
                result = file;
                UploadFile.PostedFile.SaveAs(oFullName);
            }
            return result;
        }
        public string uploadArticle(System.Web.UI.HtmlControls.HtmlInputFile UploadFile)
        {
            string filetype = System.IO.Path.GetExtension(UploadFile.PostedFile.FileName);
            string result = "";
            //检查上传文件的格式是否有效 
            if(UploadFile.PostedFile.ContentType.ToLower().IndexOf("image") >= 0)
            {
                if(UploadFile.PostedFile.ContentType.ToLower().IndexOf("image") < 0)
                {
                    result = "上传图片格式无效!";
                    return result;
                }

                //生成原图 
                System.IO.Stream oStream = UploadFile.PostedFile.InputStream;

                System.Drawing.Image oImage = System.Drawing.Image.FromStream(oStream);
                string file = DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + filetype;
                string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../UploadImg/") + file;//保存原图的物理路径 
                result = file;
                try
                {
                    //以不同格式保存图片 
                    if(filetype.Trim().ToLower().CompareTo(".png") == 0)
                    {
                        oImage.Save(oFullName, System.Drawing.Imaging.ImageFormat.Png);
                    }
                    else
                    {
                        oImage.Save(oFullName, System.Drawing.Imaging.ImageFormat.Jpeg);
                    }
                }
                catch(Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    //释放资源 
                    oImage.Dispose();

                }
            }
            else
            {
                string file = DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + filetype;
                string oFullName = System.Web.HttpContext.Current.Server.MapPath("File/") + file;//保存原图的物理路径 
                result = file;
                UploadFile.PostedFile.SaveAs(oFullName);
            }
            return result;
        }

        public string uploadDirectWeb(System.Web.UI.WebControls.FileUpload UploadFile)
        {
            string filetype = System.IO.Path.GetExtension(UploadFile.PostedFile.FileName);
            string result = "";
            //检查上传文件的格式是否有效 
            if(UploadFile.PostedFile.ContentType.ToLower().IndexOf("pdf") < 0)
            {
                if(UploadFile.PostedFile.ContentType.ToLower().IndexOf("image") < 0)
                {
                    result = "上传图片格式无效!";
                    return result;
                }

                //生成原图 
                System.IO.Stream oStream = UploadFile.PostedFile.InputStream;

                System.Drawing.Image oImage = System.Drawing.Image.FromStream(oStream);
                string file = DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + filetype;
                string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../UploadImg/") + file;//保存原图的物理路径 
                result = file;
                try
                {
                    //以不同格式保存图片 
                    if(filetype.Trim().ToLower().CompareTo(".png") == 0)
                    {
                        oImage.Save(oFullName, System.Drawing.Imaging.ImageFormat.Png);
                    }
                    else
                    {
                        oImage.Save(oFullName, System.Drawing.Imaging.ImageFormat.Jpeg);
                    }
                }
                catch(Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    //释放资源 
                    oImage.Dispose();

                }
            }
            else
            {
                string file = DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + ".pdf";
                string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../file/") + file;//保存原图的物理路径 
                result = file;
                UploadFile.PostedFile.SaveAs(oFullName);
            }
            return result;
        }
        public string uploadPNG(System.Web.UI.HtmlControls.HtmlInputFile UploadFile)
        {
            string filetype = System.IO.Path.GetExtension(UploadFile.PostedFile.FileName);
            string result = "";
            //检查上传文件的格式是否有效 
            if(UploadFile.PostedFile.ContentType.ToLower().IndexOf("pdf") < 0)
            {
                if(UploadFile.PostedFile.ContentType.ToLower().IndexOf("image") < 0)
                {
                    result = "上传图片格式无效!";
                    return result;
                }

                //生成原图 
                System.IO.Stream oStream = UploadFile.PostedFile.InputStream;

                System.Drawing.Image oImage = System.Drawing.Image.FromStream(oStream);
                string file = DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + filetype;
                string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../UploadImg/") + file;//保存原图的物理路径 
                result = file;
                try
                {
                    //以JPG格式保存图片 
                    oImage.Save(oFullName, System.Drawing.Imaging.ImageFormat.Png);
                }
                catch(Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    //释放资源 
                    oImage.Dispose();

                }
            }
            else
            {
                string file = DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + ".pdf";
                string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../file/") + file;//保存原图的物理路径 
                result = file;
                UploadFile.PostedFile.SaveAs(oFullName);
            }
            return result;
        }
        public string uploadFlv(System.Web.UI.HtmlControls.HtmlInputFile UploadFile)
        {
            string result = "";
            //检查上传文件的格式是否有效 
            string file = DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + ".flv";
            string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../file/") + file;//保存文件的物理路径
            result = file;
            UploadFile.PostedFile.SaveAs(oFullName);
            return result;
        }
        public string uploadFile(System.Web.UI.HtmlControls.HtmlInputFile UploadFile)
        {
            string filetype = System.IO.Path.GetExtension(UploadFile.PostedFile.FileName);
            string result = "";
            string file = DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + filetype;
            string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../file/") + file;//保存文件的物理路径
            result = file;
            UploadFile.PostedFile.SaveAs(oFullName);
            return result;
        }
        public string uploadProjectFile(System.Web.UI.HtmlControls.HtmlInputFile UploadFile, string filename)
        {
            string filetype = System.IO.Path.GetExtension(UploadFile.PostedFile.FileName);
            string result = "";
            string file = filename + "_" + DateTime.Now.ToShortDateString().Replace("-", "").Replace("/", "") + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + filetype;
            string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../file/") + file;//保存文件的物理路径
            result = file;
            UploadFile.PostedFile.SaveAs(oFullName);
            return result;
        }

        public string uploadAdvertisement(System.Web.UI.HtmlControls.HtmlInputFile UploadFile, string filename)
        {
            string filetype = System.IO.Path.GetExtension(UploadFile.PostedFile.FileName);
            string result = "";
            if(filetype.Trim().CompareTo(".flv") != 0)
            {
                result = "wrongformat";
            }
            else
            {
                string file = filename + filetype;
                string oFullName = System.Web.HttpContext.Current.Server.MapPath("../../flash/") + file;//保存文件的物理路径
                result = file;
                UploadFile.PostedFile.SaveAs(oFullName);
            }
            return result;
        }
        #endregion

    

    
    
    }
}