public async void sendMsgToServer(string msg)
        {
            ApplicationDataContainer localSettings = ApplicationData.Current.LocalSettings;

            var    local   = ApplicationData.Current.LocalFolder;
            string postUrl = "http://www.tuling123.com/openapi/api";

            if (localSettings.Values["stuId"] == null)
            {
                await new MessageDialog("由于您没有登陆不能调戏小秘书", "错误提示").ShowAsync();
                return;
            }
            string id  = localSettings.Values["stuId"].ToString();
            string key = "4fd6c3d1d91d4463a6e5dc1af430fc62";


            await this.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
            {
                TextBlock tb = new TextBlock {
                    Text = tbMsg.Text, FontSize = 16, HorizontalAlignment = HorizontalAlignment.Center, VerticalAlignment = VerticalAlignment.Center, Foreground = new SolidColorBrush(Colors.Black), Width = 280, FlowDirection = FlowDirection.RightToLeft, TextWrapping = TextWrapping.Wrap
                };
                TuringMsgPanel.Children.Add(tb);
            });


            using (HttpClient client = new HttpClient())
            {
                var kvp = new List <KeyValuePair <string, string> >
                {
                    new KeyValuePair <string, string>("userid", id),
                    new KeyValuePair <string, string>("info", tbMsg.Text),
                    new KeyValuePair <string, string>("key", key),
                };
                var content = new HttpFormUrlEncodedContent(kvp);
                HttpResponseMessage response = await client.PostAsync(new Uri(postUrl), content);

                if (response.EnsureSuccessStatusCode().StatusCode.ToString().ToLower() == "ok")
                {
                    string responseBody = await response.Content.ReadAsStringAsync();

                    string[] stringArr = responseBody.Split('"');

                    await this.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
                    {
                        TextBlock tb = new TextBlock {
                            Text = stringArr[5], FontSize = 20, HorizontalAlignment = HorizontalAlignment.Center, VerticalAlignment = VerticalAlignment.Center, Foreground = new SolidColorBrush(Color.FromArgb(255, 0, 100, 180)), Width = 280, TextWrapping = TextWrapping.Wrap
                        };
                        TuringMsgPanel.Children.Add(tb);
                    });

                    // Jsonb JSONToObject(responseBody);
                    //var json = JsonSerializer.Create();
                    //Rootobject thinw = json.Deserialize<Rootobject>(new JsonTextReader(new StringReader(responseBody)));
                }
            }
            TuringScrollView.ChangeView(null, TuringScrollView.ActualHeight + TuringScrollView.ScrollableHeight, null);
            tbMsg.Text = "";
        }
        private async void TuringBtn_Click(object sender, RoutedEventArgs e)
        {
            TuringMsgPanel.Children.Clear();
            await this.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
            {
                TextBlock tb = new TextBlock {
                    Text = "我能为你做点什么?", FontSize = 20, HorizontalAlignment = HorizontalAlignment.Center, VerticalAlignment = VerticalAlignment.Center, Foreground = new SolidColorBrush(Color.FromArgb(255, 0, 100, 180)), Width = 280, TextWrapping = TextWrapping.Wrap
                };
                TuringMsgPanel.Children.Add(tb);
            });

            TuringScrollView.ChangeView(null, TuringScrollView.ActualHeight + TuringScrollView.ScrollableHeight, null);
        }