function UploadFile() {
        //准备提交
        //$("#btnSave").attr("disabled", 'disabled');
        var result = 0;
        $.ajax({
            type: 'POST',
            url: '../../Action/UploadFile.ashx',
            data: 'path=' + $("#fileUpload").val() + '&act=add&type=4',
            success: function(data, status) {
                var stringArray = data.split("|");
                if (stringArray[0] == "1") {
                    //stringArray[0]    成功状态(1为成功，0为失败)
                    //stringArray[1]    上传成功的文件名
                    //stringArray[2]    消息提示
                    result = 1;
                }
                else {
                    //上传出错
                    alert("上传错误:" + stringArray[2]);
                    //$("#btnSave").removeAttr("disabled");
                }
                //$("#loading_msg").html("");
            },
            error: function(data, status, e) {
                alert("上传失败:" + e.toString());
                //$("#btnSave").removeAttr("disabled");
                //return false;
            }
        });
        //$("#btnSave").removeAttr("disabled");
        return (result == 0) ? false : true;
    }

//获取要保存的文件信息
            System.IO.FileInfo file = new System.IO.FileInfo(fileNamePath);
            //获得文件扩展名
            string fileNameExt = file.Extension;
            _old_file_name = file.Name;
            //验证合法的文件
            if (CheckFileExt(fileNameExt.ToLower()))
            {
                _new_file_id = GetFileName();
                //生成将要保存的随机文件名
                string fileName = _new_file_id + fileNameExt;
                //_new_file_id = fileName;
                //检查保存的路径 是否有/结尾
                if (toFilePath.EndsWith("/") == false) toFilePath = toFilePath + "/";

                //按日期归类保存
                string datePath = DateTime.Now.ToString("yyyyMM") + "/" + DateTime.Now.ToString("dd") + "/";
                if (true)
                {
                    toFilePath += datePath;
                }

                //获得要保存的文件路径
                string serverFileName = toFilePath + fileName;
                _new_file_path = serverFileName;
                //物理完整路径                    
                string toFileFullPath = HttpContext.Current.Server.MapPath(toFilePath);
                //检查是否有该路径  没有就创建
                if (!System.IO.Directory.Exists(toFileFullPath))
                {
                    System.IO.Directory.CreateDirectory(toFileFullPath);
                }

                //将要保存的完整文件名                
                string toFile = toFileFullPath + fileName;

                //附件信息添加到数据库

                ///创建WebClient实例       
                System.Net.WebClient myWebClient = new System.Net.WebClient();
                //设定windows网络安全认证   方法1
                myWebClient.Credentials = System.Net.CredentialCache.DefaultCredentials;
                ////设定windows网络安全认证   方法2
                //NetworkCredential cred = new NetworkCredential("UserName", "UserPWD");
                //CredentialCache cache = new CredentialCache();
                //cache.Add(new Uri("UploadPath"), "Basic", cred);
                //myWebClient.Credentials = cache;

                //要上传的文件       
                System.IO.FileStream fs = new Syste