C#模拟Http与Https请求框架类实例

            myStreamWriter.Write(postDataStr);
            myStreamWriter.Close();

            HttpWebResponse response = null;
            try
            {
                this.SetCertificatePolicy();
                response = (HttpWebResponse)request.GetResponse();
            }
            catch (System.Exception ex)
            {
            }
            //获取重定向地址
            //string url1 = response.Headers["Location"];
            if (response !=null)
            {
                Stream myResponseStream = response.GetResponseStream();
                StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
                string retString = myStreamReader.ReadToEnd();
                myStreamReader.Close();
                myResponseStream.Close();
                return retString;
            }
            else
            {
                return "error"; //post请求返回为空
            }
        }

        /// <summary>
        /// get请求获取返回的html