问题描述
我想使用的HTML敏捷包解析从复杂的网页表格,但我在对象模型我莫名其妙地丢失了。
I want to use the HTML agility pack to parse tables from complex web pages, but I am somehow lost in the object model.
我看了一下链接的例子,但没有发现任何表中的数据这条路。
我可以使用XPath来获取表?我已经加载的数据,如何让表后我基本丧失。我曾在Perl这样做过,这是一个有点笨拙,但工作。 ( HTML :: TableParser
)。
I looked at the link example, but did not find any table data this way.Can I use XPath to get the tables? I am basically lost after having loaded the data as to how to get the tables. I have done this in Perl before and it was a bit clumsy, but worked. (HTML::TableParser
).
我也很高兴,如果可以只流下合适的对象为使解析一盏灯。
I am also happy if one can just shed a light on the right object order for the parsing.
推荐答案
如何是这样的:
(使用HTML敏捷性包:)
HtmlDocument doc = new HtmlDocument();
doc.LoadHtml(@"<html><body><p><table id=""foo""><tr><th>hello</th></tr><tr><td>world</td></tr></table></body></html>");
foreach (HtmlNode table in doc.DocumentNode.SelectNodes("//table")) {
Console.WriteLine("Found: " + table.Id);
foreach (HtmlNode row in table.SelectNodes("tr")) {
Console.WriteLine("row");
foreach (HtmlNode cell in row.SelectNodes("th|td")) {
Console.WriteLine("cell: " + cell.InnerText);
}
}
}
请注意,你可以做,如果你想prettier使用LINQ到对象:
Note that you can make it prettier with LINQ-to-Objects if you want:
var query = from table in doc.DocumentNode.SelectNodes("//table").Cast<HtmlNode>()
from row in table.SelectNodes("tr").Cast<HtmlNode>()
from cell in row.SelectNodes("th|td").Cast<HtmlNode>()
select new {Table = table.Id, CellText = cell.InnerText};
foreach(var cell in query) {
Console.WriteLine("{0}: {1}", cell.Table, cell.CellText);
}
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