private String typename(FileUpload fileloads)

        {

            string fullfilename = fileloads.PostedFile.FileName; ;// 客户端文件路径

            string filename = fullfilename.Substring(fullfilename.LastIndexOf("\\") + 1);

            string type = fullfilename.Substring(fullfilename.LastIndexOf(".") + 1);

            string murl = "";

            if (FileUpload1.HasFile)

            {

                if (type == "xls" || type == "xlsx")

                {   





                    fileloads.PostedFile.SaveAs(Server.MapPath("Excel") + "\\" + filename);

                    murl = (Server.MapPath("Excel") + "\\" + filename).ToString();

                }

                else

                {

                    Response.Write("<script language='javascript'>alert('导入文件格式不对!');</script>");



                }

                return murl;

            }

            else

            {

                // Notify the user that a file was not uploaded.

                Response.Write("<script language='javascript'>alert('You did not specify a file to upload!');</script>");