WP调用api

private string GetText()

        {

            string resultString = string.Empty;

            HttpWebRequest request =            HttpWebRequest.CreateHttp("http://www.baidu.com");

            request.Method = "GET";

            request.BeginGetResponse((IAsyncResult result) =>

                {

                    HttpWebRequest webRequest = result.AsyncState as HttpWebRequest;

                    HttpWebResponse webResponse = (HttpWebResponse)webRequest.EndGetResponse(result);

                    Stream streamResult = webResponse.GetResponseStream();

                    StreamReader reader = new StreamReader(streamResult);

                    //获取的返回值

                    resultString = reader.ReadToEnd();

                    streamResult.Close();

                    reader.Close();

                }, request);

            return resultString;

        }