在 VB.Net 中使用 HtmlAgilityPack 检查元素是否具有特定属性

Question

我正在使用 HtmlAgilityPack 来解析 HTML。

我想检查一个元素是否具有特定属性。

我想检查<a>标签是否有href属性。

Dim doc As HtmlDocument = New HtmlDocument()

doc.Load(New StringReader(content))

Dim root As HtmlNode = doc.DocumentNode
Dim anchorTags As New List(Of String)

For Each link As HtmlNode In root.SelectNodes("//a")
    If link.HasAttributes("href") Then doSomething() 'this doesn't work because hasAttributes only checks whether an element has attributes or not
Next

Answer 1

像这样：

If link.Attributes("href") IsNot Nothing Then