使用HtmlAgilityPack从类标记获取值

Question

我正在使用此代码（请参阅下文），我希望从中获取值'Day.1'和'Day.2'。

HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();  
doc.LoadHtml("<div class=\"large-10 columns\"><div class=\"box\"><div class=\"table-header\">Day.1</div></div></div>" +
             "<div class=\"large-10 columns\"><div class=\"box\"><div class=\"table-header\">Day.2</div></div></div>");

var classes = doc.DocumentNode.SelectNodes("//div[@class=\"large-10 columns\"]");
foreach (var item in classes)
{
    var str = item.SelectSingleNode("//div[@class=\"box\"]//div[@class=\"table-header\"]");
    Output += "Test: " + str.InnerText.Split('.')[1] + "\n";   
}

使用此代码，输出为：

Test: 1
Test: 1

为什么变量'str'两次从第一个'table-header'类获取值？

Answer 1

尝试：

<instance>