當麻許的超技八

/// <summary>

/// 傳入圖片網址

/// </summary>

/// <param name="imagePath"></param>

/// <returns></returns>

private string GetKeyWordByImagePath(string imagePath)

{

    //透過直接透過傳遞參數取得資料

    var webRequest = WebRequest.Create(String.Format("http://www.google.com/searchbyimage?hl=zh-TW&site=search&image_url=" + imagePath)) as HttpWebRequest;

    webRequest.Method = "GET";

    webRequest.ProtocolVersion = HttpVersion.Version11;

    webRequest.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.1 (KHTML, like Gecko) Chrome/13.0.782.220 Safari/535.1";

    var response = webRequest.GetResponse() as HttpWebResponse;

    var reader = new StreamReader( response.GetResponseStream());

    var str = reader.ReadToEnd();

    //Regex parsing.

    var regexId = new Regex(@"這個圖片最有可能的推測結果：(?<ID>.*?)搜尋結果",RegexOptions.IgnoreCase);

    MatchCollection mcId = regexId.Matches(str);

    if (mcId.Count != 0)

    {

        return Regex.Replace(mcId[0].Groups["ID"].Value, @"<[^>]*>", String.Empty).Replace("&nbsp;", "");

    }

    return ""; 

}