/// <summary>

/// 分析 url 字符串中的参数信息

/// </summary>

/// <param name="url">输入的 URL</param>

/// <param name="baseUrl">输出 URL 的基础部分</param>

/// <param name="nvc">输出分析后得到的 (参数名,参数值) 的集合</param>

public static NameValueCollection ParseUrl(string url)

{

    NameValueCollection nvc = new NameValueCollection();

    if (string.IsNullOrEmpty(url))

        return nvc;

    // 开始分析参数对

    Regex re = new Regex(@"(^|&)?(\w+)=([^&]+)(&|$)?", RegexOptions.Compiled);

    MatchCollection mc = re.Matches(url);

    foreach (Match m in mc)

    {

        nvc.Add(m.Result("$2").ToLower(), m.Result("$3"));

    }

    return nvc;

}

/// <summary>

/// 分析 url 字符串中的参数信息

/// </summary>

/// <param name="url">输入的 URL</param>

/// <param name="baseUrl">输出 URL 的基础部分</param>

/// <param name="nvc">输出分析后得到的 (参数名,参数值) 的集合</param>

public static void ParseUrl(string url, out string baseUrl, out NameValueCollection nvc)

{

  if (url == null)

 throw new ArgumentNullException("url");

  nvc = new NameValueCollection();

  baseUrl = "";

  if (url == "")

 return;

  int questionMarkIndex = url.IndexOf('?');

  if (questionMarkIndex == -)

  {

 baseUrl = url;

 return;

  }

  baseUrl = url.Substring(, questionMarkIndex);

  if (questionMarkIndex == url.Length - )

 return;

  string ps = url.Substring(questionMarkIndex + );

  // 开始分析参数对

  Regex re = new Regex(@"(^|&)?(\w+)=([^&]+)(&|$)?",RegexOptions.Compiled);

  MatchCollection mc = re.Matches(ps);

  foreach (Match m in mc)

  {

 nvc.Add(m.Result("$2").ToLower(), m.Result("$3"));

  }

}

List<KeyValuePair<String, String>> paramList = new List<KeyValuePair<String, String>>();

paramList.Add(new KeyValuePair<string, string>("data","test"));

using (HttpClient hc = new HttpClient())

{

    HttpResponseMessage response = hc.PostAsync(new Uri(url), new FormUrlEncodedContent(paramList)).Result;

    var result = JsonConvert.DeserializeObject<ResultInfo>(response.Content.ReadAsStringAsync().Result);

}