public static string CheckCode(string mobile, string code)
        {
            string msg = "";
            String url = "https://api.netease.im/sms/verifycode.action";

            url += "?mobile=" + mobile + "&code=" + code;//请输入正确的手机号
            //网易云信分配的账号,请替换你在管理后台应用下申请的Appkey
            String appKey = "dc8b5d76ca7015f53f3bec361ade561b";
            //网易云信分配的密钥,请替换你在管理后台应用下申请的appSecret
            String appSecret = "ea5125c41272";
            //随机数(最大长度128个字符)
            String nonce = "12345";

            TimeSpan ts    = DateTime.Now.ToUniversalTime() - new DateTime(1970, 1, 1);
            Int32    ticks = System.Convert.ToInt32(ts.TotalSeconds);
            //当前UTC时间戳,从1970年1月1日0点0 分0 秒开始到现在的秒数(String)
            String curTime = ticks.ToString();
            //SHA1(AppSecret + Nonce + CurTime),三个参数拼接的字符串,进行SHA1哈希计算,转化成16进制字符(String,小写)
            String checkSum = CheckSumBuilder.getCheckSum(appSecret, nonce, curTime);

            IDictionary <object, String> headers = new Dictionary <object, String>();

            headers["AppKey"]      = appKey;
            headers["Nonce"]       = nonce;
            headers["CurTime"]     = curTime;
            headers["CheckSum"]    = checkSum;
            headers["ContentType"] = "application/x-www-form-urlencoded;charset=utf-8";
            msg = UrlHttpClient.HttpPost(url, null, headers);
            return(msg);
        }
        /// <summary>
        ///用code换取获取用户信息(包括非关注用户的)
        /// </summary>
        /// <param name="Appid"></param>
        /// <param name="Appsecret"></param>
        /// <param name="Code">回调页面带的code参数</param>
        /// <returns>获取用户信息(json格式)</returns>
        public string GetUserInfo(string Appid, string Appsecret, string Code)
        {
            string url    = string.Format("https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code", Appid, Appsecret, Code);
            string ReText = UrlHttpClient.WebRequestPostOrGet(url, "");//post/get方法获取信息
            Dictionary <string, object> DicText = (Dictionary <string, object>)Jss.DeserializeObject(ReText);

            return(UrlHttpClient.WebRequestPostOrGet("https://api.weixin.qq.com/sns/userinfo?access_token=" + DicText["access_token"] + "&openid=" + DicText["openid"] + "&lang=zh_CN", ""));
        }
        /// <summary>
        /// 用code换取openid 此方法一般是不获取用户昵称时候使用
        /// </summary>
        /// <param name="Appid"></param>
        /// <param name="Appsecret"></param>
        /// <param name="Code">回调页面带的code参数</param>
        /// <returns>微信用户唯一标识openid</returns>
        public string CodeGetOpenid(string Appid, string Appsecret, string Code)
        {
            string url    = string.Format("https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code", Appid, Appsecret, Code);
            string ReText = UrlHttpClient.WebRequestPostOrGet(url, "");//post/get方法获取信息
            Dictionary <string, object> DicText = (Dictionary <string, object>)Jss.DeserializeObject(ReText);

            if (!DicText.ContainsKey("openid"))
            {
                return("");
            }
            return(DicText["openid"].ToString());
        }