最近在弄一些第三方的平臺，經常調用第三方的接口實現某些特定的功能

在實現的同時基本上都需要本地的數據經過服務器在Request到第三方的服務器中處理，再返回相應的數據結構體：json/xml

以下是我總結的一個小方法，請農友們笑納：

public static string PostWebReq(string PostUrl, string ParamData, Encoding DataEncode)    {      string ret = string.Empty;      try      {        byte[] byteArray = DataEncode.GetBytes(ParamData);        HttpWebRequest webReq = (HttpWebRequest)WebRequest.Create(new Uri(PostUrl));        webReq.Method = "POST";        webReq.ContentType = "application/x-www-form-urlencoded";        webReq.ContentLength = byteArray.Length;        Stream newStream = webReq.GetRequestStream();        newStream.Write(byteArray, 0, byteArray.Length);        newStream.Close();        HttpWebResponse response = (HttpWebResponse)webReq.GetResponse();        StreamReader sr = new StreamReader(response.GetResponseStream(), DataEncode);        ret = sr.ReadToEnd();        sr.Close();        response.Close();        newStream.Close();      }      catch (WebException ex)      {        Log.WriteLog(LogFile.Error, ex.Message);      }      finally      {        Log.WriteLog(LogFile.Info, ret);      }      return ret;    }