将 ASCII 编码为 HTML

Question

我正在尝试WebClient 中的DownloadData 方法。我目前的问题是我无法弄清楚如何将ASCII result（< 到 <、\n、> 到 >）转换为>），它是由Encoding.ASCII.GetString(myDataBuffer); 生成的，从这个page.

_{（来源：iforce.co.nz）}

    /// <summary>
    /// Curl data from the PMID
    /// </summary>
    private void ClientPMID(int pmid)
    {
        //generate the URL for the client
        StringBuilder pmid_url_string = new StringBuilder();
        pmid_url_string.Append("http://www.ncbi.nlm.nih.gov/pubmed/").Append(pmid.ToString()).Append("?report=xml");
        Uri PMIDUri = new Uri(pmid_url_string.ToString());
        //declare and initialize the client
        WebClient client = new WebClient();
        // Download the Web resource and save it into a data buffer. 
        byte[] myDataBuffer = client.DownloadData(PMIDUri);
        this.DownloadCompleted(myDataBuffer);
    }
    /// <summary>
    /// Crawl over the binary from myDataBuffer
    /// </summary>
    /// <param name="myDataBuffer">Binary Buffer</param>
    private void DownloadCompleted(byte[] myDataBuffer)
    {
        string download = Encoding.ASCII.GetString(myDataBuffer);
        PMIDCrawler pmc = new PMIDCrawler(download, "/pre/PubmedArticle/MedlineCitation/Article");
        //iterate over each node in the file
        foreach (XmlNode xmlNode in pmc.crawl)
        {
            string AbstractTitle = xmlNode["ArticleTitle"].InnerText;
            string AbstractText = xmlNode["Abstract"]["AbstractText"].InnerText;
        }
    }

PMIDCrawler 的代码可在我关于DownloadStringCompletedEventHandler 的其他 SO 问题中找到。虽然string html = HttpUtility.HtmlDecode(nHtml); 的输出无效HTML (OR XML)（由于它没有响应xml http 标头），但在接收到来自Encoding.ASCII.GetString 的内容后。

Answer 1

不幸的是，此服务器无法正确响应 Accept: text/xml 或 Accept: application/xml，因此您必须努力做到这一点 (HttpUtility)

string download = HttpUtility.HtmlDecode(Encoding.ASCII.GetString(myDataBuffer));

（或 .NET Fx 4.5+ 上的 WebUtility.Decode）

或

string download = Encoding.ASCII.GetString(myDataBuffer);
if (download != null) { // this won't get all HTML escaped characters...
    download = download.Replace("&lt;", "<").Replace("&gt;", ">");
}

另请参阅this question 了解更多信息。