数据示例：

         /// <summary>

        /// 构造参数

        /// </summary>

        /// <returns></returns>

        public string GetJsApiParameters()

        {

            int iMin = ;

            int iMax = ;

            Random rd = new Random();//构造随机数

            string strMch_billno = WxPayConfig.MCHID + DateTime.Now.ToString("yyyyMMddHHmmss") + rd.Next(iMin, iMax).ToString();

            WxPayData jsApiParam = new WxPayData();

            jsApiParam.SetValue("act_name", "活动名称：功能测试");//活动名称

            jsApiParam.SetValue("client_ip", "192.168.1.216");//这里填写的是我本机的内网ip，实际应用不知道需不需要改。

            jsApiParam.SetValue("mch_billno", strMch_billno);//商户订单号,商户订单号（每个订单号必须唯一）组成：mch_id+yyyymmdd+10位一天内不能重复的数字。 接口根据商户订单号支持重入，如出现超时可再调用。

            jsApiParam.SetValue("mch_id", WxPayConfig.MCHID);//商户号,微信支付分配的商户号

            jsApiParam.SetValue("nonce_str", WxPayApi.GenerateNonceStr());//随机字符串，不长于32位

            jsApiParam.SetValue("remark", "备注信息，梁明晓");//备注信息

            jsApiParam.SetValue("re_openid", "oZk_xsvzIqH2Xz_RPycJEYuTHAXx");//接收者的openid

            jsApiParam.SetValue("send_name", "雅达电子");//商户名称,红包发送者名称

            jsApiParam.SetValue("total_amount", );//红包金额，单位分

            jsApiParam.SetValue("total_num", );//红包发放总人数

            jsApiParam.SetValue("wishing", "感谢您参加猜灯谜活动，祝您元宵节快乐！");//红包祝福语

            jsApiParam.SetValue("wxappid", WxPayConfig.APPID);//公众账号appid,微信分配的公众账号ID（企业号corpid即为此appId）。接口传入的所有appid应该为公众号的appid（在mp.weixin.qq.com申请的），不能为APP的appid（在open.weixin.qq.com申请的）。

            jsApiParam.SetValue("sign", jsApiParam.MakeSign());//签名,切记，这个签名参数必须放在最后，因为他生成的签名，跟前面的参数有关系

            string parameters = jsApiParam.ToXml();

            return parameters;

        }

 　　　　/// <summary>

        /// 提交请求

        /// </summary>

        /// <param name="posturl"></param>

        /// <param name="postData"></param>

        /// <returns></returns>

        public string WxRedPackPost(string posturl, string postData)

        {

            Stream outstream = null;

            Stream instream = null;

            StreamReader sr = null;

            HttpWebResponse response = null;

            HttpWebRequest request = null;

            Encoding encoding = Encoding.UTF8;

            byte[] data = encoding.GetBytes(postData);

            // 准备请求...

            try

            {

                //CerPath证书路径，这里是本机的路径，实际应用中，按照实际情况来填写

                string certPath = @"F:\Jeffrey9061\SVN\Project\CompanyProject\西安培华微信用户实时更新客户端\西安培华微信用户实时更新客户端\" + WxPayConfig.SSLCERT_PATH;

                //证书密码

                string password = WxPayConfig.SSLCERT_PASSWORD;

                X509Certificate2 cert = new System.Security.Cryptography.X509Certificates.X509Certificate2(certPath, password, X509KeyStorageFlags.MachineKeySet);

                // 设置参数

                request = WebRequest.Create(posturl) as HttpWebRequest;

                CookieContainer cookieContainer = new CookieContainer();

                request.CookieContainer = cookieContainer;//不可少（个人理解为，返回的时候需要验证）

                request.AllowAutoRedirect = true;

                request.Method = "POST";

                request.ContentType = "text/xml";

                request.ContentLength = data.Length;

                request.ClientCertificates.Add(cert);//添加证书请求

                outstream = request.GetRequestStream();

                outstream.Write(data, , data.Length);

                outstream.Close();

                //发送请求并获取相应回应数据

                response = request.GetResponse() as HttpWebResponse;

                //直到request.GetResponse()程序才开始向目标网页发送Post请求

                instream = response.GetResponseStream();

                sr = new StreamReader(instream, encoding);

                //返回结果网页（html）代码

                string content = sr.ReadToEnd();

                string err = string.Empty;

                return content;

            }

            catch (Exception ex)

            {

                string err = ex.Message;

                return string.Empty;

            }

        }