Question

我需要来自rss feed的说明，但始终会获得路径图片的说明。

RSS Feed是：

<description>
<![CDATA[<img src="http://example.com/img/1/title/1967304.jpg"/> Ukrainian forces launch an "anti-terrorist operation" after pro-Russian gunmen seize buildings in the eastern part of the country.]]>
</description>

我有代码：

if (this._groups.Count != 0)
   return;

SyndicationClient client = new SyndicationClient();
Uri feedUri = new Uri("url_feed");
var feed = await client.RetrieveFeedAsync(feedUri);
foreach (SyndicationItem item in feed.Items)
{
    string data = string.Empty;

    if (feed.SourceFormat == SyndicationFormat.Rss20)
    {
       // Get description
       data = item.Summary.Text;
    }
    Regex regx = new Regex("http://([\\w+?\\.\\w+])+([a-zA-Z0-9\\~\\!\\@\\#\\$\\%\\^\\&amp;\\*\\(\\)_\\-\\=\\+\\\\\\/\\?\\.\\:\\;\\'\\,]*)?.(?:jpg|bmp|gif|png)"
                            , RegexOptions.IgnoreCase);
    string filePath = regx.Match(data).Value;

    DataGroup group = new DataGroup(item.Id,
                                       item.Title.Text,
                                       item.Links[0].Uri.ToString(),
                                       filePath.Replace("small", "large"),
                                       data.Split(new string[] { "<br>" }, StringSplitOptions.None)[0].ToString());
    this.Groups.Add(group);
}

输出是（在文本块中）：

＆LT; img src =“http://example.com/img/1/title/1967304.jpg”＆gt;亲俄罗斯武装分子占领该国东部的建筑后，乌克兰军队开展了“反恐行动”。

我只需要文本，没有带img路径的文本。

Answer 1

如果您的文字不包含＆＃39;＆lt;＆＃39;或者＆＃39;＆gt;＆＃39;你可能会发现这个usfull：

使用：

using System.Text.RegularExpressions;

片段：

// Do your stuff to get the description

string description = "< img src=\"http://example.com/img/1/title/1967304.jpg\"> Ukrainian forces launch an \"anti-terrorist operation\" after pro-Russian gunmen seize buildings in the eastern part of the country.";

string cleaned = Regex.Replace(description, @"<[^>]*>", String.Empty, RegexOptions.IgnoreCase).Trim();

Console.WriteLine(cleaned);

从描述中删除img路径

1 个答案: