修改bug

1.代码/HySoftSMS/HySoftSMS/FrmMain.cs

                         var signcode = Utils.MD5(account + "+" + password + "+" + sign + "+" + DateTime.Now.ToString("yyyyMMdd"));
                         string param = "usercode=" + account + "&password=" + password + "&signcode=" + signcode + "&signname=" + signname + "&templatecode=" + item.短信CODE
                             + "&phonenumber=" + item.号码 + "&paramname=" + item.短信参数名 + "&param=" + item.短信参数;
-                        var jo0 = Utils.PostHTML(url, param);//.ToJObject();
+                        var jo0 = Utils.HttpPost(url, param);//.ToJObject();
                         JObject sendresult = (JObject)JsonConvert.DeserializeObject(jo0);
                         string result = string.Empty;
                         if (sendresult["state"].ToString() == "success")