Html Agility Pack 处理通配符

2021-07-29 02:58:47

Html Agility Pack 处理通配符

let doc = new HtmlAgilityPack.HtmlDocument()
doc.LoadHtml( html )

========

let url = "http://Site.site.site"

let html = new HtmlAgilityPack.HtmlWeb()
let doc0 = html.Load ( url )
html.OverrideEncoding <- doc0.Encoding
let doc = html.Load ( url )

doc.DocumentNode.SelectNodes("//input")
|> Seq.map (fun i -> i.OuterHtml)
|> Seq.iter (printfn "%s")

<input id="tb_user" class="textbox_sty2" ...>
<input id="tb_pass" class="textbox_sty2" ...>
<input id="bt_ok" ...>
<input id="bt_cancle" ...>
<input type="hidden" name="__EVENTTARGET">
<input type="hidden" name="__EVENTARGUMENT">

doc.DocumentNode.SelectNodes("//input[contains(@id, ‘bt‘)]")
|> Seq.map (fun i -> i.OuterHtml)
|> Seq.iter (printfn "%s")

<input id="bt_ok" ...>
<input id="bt_cancle" ...>

doc.DocumentNode.SelectNodes("//input[contains(@name, ‘__‘)]")
|> Seq.map (fun i -> i.OuterHtml)
|> Seq.iter (printfn "%s")

<input type="hidden" name="__EVENTTARGET">
<input type="hidden" name="__EVENTARGUMENT">

doc.DocumentNode.SelectNodes("//input[starts-with(@id, ‘tb‘)]")
|> Seq.map (fun i -> i.OuterHtml)
|> Seq.iter (printfn "%s")

<input id="tb_user" class="textbox_sty2" ...>
<input id="tb_pass" class="textbox_sty2" ...>

http://www.w3school.com.cn/xpath/xpath_functions.asp

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