C#怎么访问某个PHP文件

C#如何访问某个PHP文件？
自己写的老是提示出错，代码如下：

C# code

static string RegularFlowURL = "localhost/test.php";public static void Check(){    try    {        System.Net.ServicePointManager.Expect100Continue = false;        Stream instream = null;        StreamReader sr = null;        HttpWebResponse response = null;        HttpWebRequest request = null;        Encoding encoding = Encoding.UTF8;        request = WebRequest.Create(RegularFlowURL) as HttpWebRequest;        request.Method = "POST";        request.ContentType = "application/x-www-form-urlencoded";        request.ContentLength = 0;        response = request.GetResponse() as HttpWebResponse;        instream = response.GetResponseStream();        sr = new StreamReader(instream, encoding);        string content = sr.ReadToEnd();     }     catch (Exception ee)     {         MessageBox.Show("访问出错，请稍后再试");      }}

C# code

static string RegularFlowURL = "http://localhost/test.php";public static void Check(){    try    {        System.Net.ServicePointManager.Expect100Continue = false;        Stream instream = null;        StreamReader sr = null;        HttpWebResponse response = null;        HttpWebRequest request = null;        Encoding encoding = Encoding.UTF8;        request = WebRequest.Create(RegularFlowURL) as HttpWebRequest;        response = request.GetResponse() as HttpWebResponse;        instream = response.GetResponseStream();        sr = new StreamReader(instream, encoding);        string content = sr.ReadToEnd();    }    catch (Exception ee)    {        MessageBox.Show("访问出错，请稍后再试");    }}
[解决办法]
如果再有错把 catch 里 ee.Message 打印出来看看是什么内容
[解决办法]
你又不传参数，
C# code
request.Method = "POST";request.ContentType = "application/x-www-form-urlencoded";request.ContentLength = 0;