Question

我希望在带有xpath的“ac-algo fz-l ac-21th lh-24”类名的html页面中获取所有链接。

我写了代码：

SELECT *
FROM dbo.YourTable A
WHERE EXISTS(SELECT 1 FROM dbo.YourTable 
             WHERE DepartmentNumber = A.DepartmentNumber
             GROUP BY DepartmentNumber
             HAVING COUNT(*) > 1) 
AND ID = ManagerID;

但我得到这个错误：

string links = node.SelectSingleNode(".//a[(@class,'ac-algo fz-l ac-21th lh-24')]").GetAttributeValue("href", null);

Answer 1

用等号替换逗号并删除下面的括号，以便按照确切的类名匹配元素：

string links = node.SelectSingleNode(".//a[@class='ac-algo fz-l ac-21th lh-24']").GetAttributeValue("href", null);

或者您可以使用contains()按部分类名匹配元素：

string links = node.SelectSingleNode(".//a[contains(@class,'ac-algo fz-l ac-21th lh-24')]").GetAttributeValue("href", null);

Xpath有一个无效的令牌

1 个答案: