获取jsapi_ticket微信公众号调用微信JS接口的临时票据
        <param name="accessToken">微信公众号的全局唯一接口调用凭证</param>
        string RequestJsapi_ticket( accessToken)
        {
            string content = ;
            tryTODO：注意api_ticket 是用于调用微信卡券JS API的临时票据，有效期为7200 秒，通过access_token 来获取。

                string url = https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=" + accessToken + &type=jsapi;
                ;
                HttpWebRequest request = WebRequest.Create(url)  HttpWebRequest;
                CookieContainer cookieContainer =  CookieContainer();
                request.CookieContainer = cookieContainer;
                request.AllowAutoRedirect = ;
                request.Method = method;
                request.ContentType = ;
                request.Headers.Add();
                发送请求并获取响应数据
                HttpWebResponse response = request.GetResponse()  HttpWebResponse;
                Stream responseStream = response.GetResponseStream();
                StreamReader sr = 获取返回过来的结果
                content = sr.ReadToEnd();
                dynamic resultStr = JsonConvert.DeserializeObject(content,1)">new { errcode=}.GetType());

                请求成功
                if (resultStr.errcode==0"&&resultStr.errmsg==ok)
                {
                    content=resultStr.ticket;
                }
                
                {
                    content = ;
                }
               
                return content;
            }
            catch (Exception ex)
            {
                content = ex.Message;
                 content;
            }
        }

        ///  随机字符串数组集合
        </summary>
        private readonly string[] NonceStrings = new []
                                    {
                                    abcdefghijklmnopqrstuvwxyz,ABCDEFGHIJKLMNOPQRSTUVWXYZ
                                    };

         生成签名的随机串
         CreateNonceStr()
        {
            Random random =  Random();
            var sb =  StringBuilder();
            var length = NonceStrings.Length;

            生成15位数的随机字符串，当然也可以通过控制对应字符串大小生成，但是至多不超过32位
            for (int i = 0; i < 15; i++)
            {
                sb.Append(NonceStrings[random.Next(length - 1)]);通过random获得的随机索引到，NonceStrings数组中获取对应数组值
 sb.ToString();
        }

         获取当前时间戳
        long GetCurrentUinxTime()
        {
            DateTime currentDate = DateTime.Now;当前时间
            转化为时间戳
            DateTime localTime = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970,1)">1,1)">1));
            return long.Parse((currentDate - localTime).TotalSeconds.ToString().Split('.')[0]);
        }

        //获取当前网页URL
        string currentWebUrl = Request.Url.ToString();

         获取签名
        <param name="jsapi_ticket">微信公众号调用微信JS临时票据<param name="nonceStr">随机串<param name="timestamp">时间戳<param name="url">当前网页URLstring GetSignature(string jsapi_ticket,1)">string nonceStr,1)">long timestamp,1)"> url)
        {

            var string1Builder = 注意这里参数名必须全部小写，且必须有序
            string1Builder.Append(jsapi_ticket=").Append(jsapi_ticket).Append(&)
                          .Append(noncestr=").Append(nonceStr).Append(timestamp=").Append(timestamp).Append(url=").Append(url.IndexOf(#") >= 0 ? url.Substring(0,url.IndexOf()) : url);

             Sha1(string1Builder.ToString(),Encoding.UTF8);
        }

         签名加密，使用SHA加密所得
        <param name="content">签名加密参数<param name="encode">编码UTF-8string Sha1( content,Encoding encode)
        {
            
            {
                SHA1 sha1 =  SHA1CryptoServiceProvider();
                byte[] bytesIn = encode.GetBytes(content);
                byte[] bytesOut = sha1.ComputeHash(bytesIn);
                sha1.Dispose();
                string result = BitConverter.ToString(bytesOut);
                result = result.Replace(- result;
            }
             (Exception ex)
            {
                throw new Exception(SHA1加密出错： ex.Message);
            }
        }