将递归代码转换为LINQ

Question

我想将此递归调用转换为LINQ，但我不知道如何执行最后两个条件。请告知如何添加最后两个条件。

private void findGoogleOrganic(HtmlNode node) 
    { 
      if (node.Attributes["class"] != null) 
      { 
       if (node.Attributes["class"].Value.ToString().Contains("r ld")) 
       { 
        String tmp; 
        tmp = node.ParentNode.InnerHtml.ToString(); 
        bool condition1 = false; 
        bool condition2 = false; 

        if (tmp != null) 
        { 
         **condition1 = tmp.Contains("qcp47e"); 
         condition2 = tmp.Contains("r ld");** 
        } 

        **if (condition1 == false && condition2 == true)** 
        { 
         GoogleOrganicResults.Add(new Result(URLGoogleOrganic, Listing, node, SearchEngine.Google, SearchType.Organic, ResultType.Website)); 

        } 
       } 
      } 

       if (node.HasChildNodes) 
       { 
        foreach (HtmlNode children in node.ChildNodes) 
        { 
         findGoogleOrganic(children); 
        } 
       } 
      } 

这是我没有最后两个条件的第一次尝试：

private void findGoogleOrganicLINQ(HtmlNode node) 
    { 
     var results = node.Descendants() 
      .Where(x => x.Attributes["class"] != null && 
         x.Attributes["class"].Value.Contains("r ld")) 
      .Select(x => new Result(URLGoogleLocal, Listing, x, SearchEngine.Google, SearchType.Local, ResultType.GooglePlaces)); 

     foreach (Result x in results) 
     { 
      GoogleOrganicResults.Add(x); 
     } 
    } 

Answer 1

if(node.HasChildNodes) 
{ 
    node.ChildNodes.ForEach(findGoogleOrganic); 
}