HttpRequest Get和Post调用其他页面的方法

        }
        catch (Exception e)
        {
            PageStr += e.Message;
        }
        return PageStr;
    }

//Post请求方式，于Get的方式写法相似，所以解释就些少一点了
 

  private string RequestPost(string Url,string Context)//两个参数分别是Url地址和Post过去的数据
    {
        string PageStr=string.Empty;
        Uri url = new Uri(Url);
        byte[] reqbytes=Encoding.ASCII.GetBytes(Context);
        try
        {
            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
            req.Method = "post";
            req.ContentType = "application/x-www-form-urlencoded";
            req.ContentLength = reqbytes.Length;
            Stream stm = req.GetRequestStream();
            stm.Write(reqbytes, 0, reqbytes.Length);

            stm.Close();
            HttpWebResponse wr = (HttpWebResponse)req.GetResponse();
            Stream stream = wr.GetResponseStream();
            StreamReader srd= new StreamReader(stream,Encoding.GetEncoding("gb2312"));
            PageStr += srd.ReadToEnd();
            stream.Close();
            srd.Close();
        }
        catch (Exception e)
        {
            PageStr += e.Message;
        }
        return PageStr;
    }

public string WebClientGet(string url)
        {
            var client = new WebClient();
            client.Headers.Add("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)");