创蓝语音服务（语音通知验证码）.net

  public static string PostUrl = "http://zapi.253.com/msg/HttpBatchSendSM";
        static void Main(string[] args)
        {
            string account = "";
            string password = "";
            string mobile = "1";
            string content = "您的登陆验证码是1234";

            string postStrTpl = "account={0}&pswd={1}&mobile={2}&msg={3}&needstatus=true&product=&extno=";

            UTF8Encoding encoding = new UTF8Encoding();
            byte[] postData = encoding.GetBytes(string.Format(postStrTpl, account, password, mobile, content));

            HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(PostUrl);
            myRequest.Method = "POST";
            myRequest.ContentType = "application/x-www-form-urlencoded";
            myRequest.ContentLength = postData.Length;

            Stream newStream = myRequest.GetRequestStream();
            // Send the data.
            newStream.Write(postData, 0, postData.Length);
            newStream.Flush();
            newStream.Close();

            HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();

            if (myResponse.StatusCode == HttpStatusCode.OK)
            {
                StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
                myResponse.Close();
                myRequest.Abort();
                Console.WriteLine("发送成功");
                Console.ReadKey();
            }
            else
            {
                myRequest.Abort();
                myResponse.Close();
                Console.WriteLine("发送失败");
                Console.ReadKey();
            }
        }