private void Extract(string url)
{
HtmlWeb hw = new HtmlWeb();
HtmlDocument doc = hw.Load(url);
foreach (HtmlNode link in doc.DocumentElement.SelectNodes("//a[@href]"))
{
}
}
我想从 html 文件中提取/解析所有链接。但我收到一个错误:
错误 8“HtmlAgilityPack.HtmlDocument”不包含“DocumentElement”的定义,并且找不到接受“HtmlAgilityPack.HtmlDocument”类型的第一个参数的扩展方法“DocumentElement”(您是否缺少 using 指令或程序集引用?)
编辑**
我这样做了:
private void Extract(string url)
{
StreamWriter w = new StreamWriter(@"d:\localpath\test.txt");
HtmlWeb hw = new HtmlWeb();
HtmlDocument doc = hw.Load(url);
foreach (HtmlNode link in doc.DocumentNode.SelectNodes("//a[@href]"))
{
w.WriteLine(link);
}
w.Close();
}
并使用它:
Extract(@"d:\localpath\Sat24_Cloudsheight_Europe.html");
但是我得到的是同一行的很多倍:
HtmlAgilityPack.HtmlNode HtmlAgilityPack.HtmlNode HtmlAgilityPack.HtmlNode HtmlAgilityPack.HtmlNode HtmlAgilityPack.HtmlNode HtmlAgilityPack.HtmlNode HtmlAgilityPack.HtmlNode HtmlAgilityPack.HtmlNode HtmlAgilityNodePack.HtmlNode HtmlAgilityPack.HtmlNode HtmlAgilityHtmlAgilityPack.HtmlNode HtmlAgilityPack.
我如何将解析的链接写入文本文件?