使用VB.Net中的HtmlAgilityPack检查元素是否具有特定属性

Question

我正在使用HtmlAgilityPack解析HTML。

我想检查某个元素是否具有特定属性。

我想检查<a>标记是否具有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