``数据库里存文件名就好,连图片也存太耗费资源
``用服务器控FileUpload
相关代码:try
        {
            if (System.IO.Directory.Exists(Server.MapPath(".") + "..\\Upload"))
            {
                if (Fud_one.PostedFile.FileName.ToString().Trim() != string.Empty)
                {
                    string FileName = System.IO.Path.GetFileName(Fud_one.PostedFile.FileName.Trim());
                    Fud_one.PostedFile.SaveAs(Server.MapPath(".") + "..\\Upload\\" + FileName);//上传到指定目录文件夹
                    lbl_img.Text = "Upload\\" + FileName.Trim();//取文件名
                }
            }
            else
            {
                System.IO.Directory.CreateDirectory(Server.MapPath(".") + "..\\Upload");
                Upload();
            }
            Response.Write("<script defer>window.alert('上传成功!');</script>");
        }
        catch
        { }