我有这段代码
Category featured = new Category()
{
active = true,
Categories = new Category[0],
description = "",
identifier = "featured",
name = "Featured",
Products = new Product[0],
url = siteUrl,
};
StatisticCounters.CategoriesCounter();
然后在这下面我有这个代码。
private IList<Category> FeatureSubCategories(HtmlNode std, Category category,Category featured)
{
List<Category> categories = new List<Category>();
{
if (category.name == "Featured")
{
var nodes = std.SelectNodes("//span[contains(@class,'widget')] [position() <= 4]"); //TODO
foreach (var node in nodes)
{
string name = SiteParserUtilities.ParserUtilities.CleanText(System.Net.WebUtility.HtmlDecode(node.InnerText));
string url = node.Attributes["href"].Value;
string identifier = url.Split('/').Last().Replace(".html", "");
WriteQueue.write(string.Format(" Category [{0}].. {1} ", name, url));
IList<Category> sub = GetSubCategories(std);
Category c = new Category()
{
active = true,
Categories = sub.ToArray(),
description = "",
identifier = identifier,
name = name,
Products = new Product[0],
url = url,
};
StatisticCounters.CategoriesCounter();
categories.Add(c);
}
}
}
return categories;
}
由于某种原因,当我运行代码时if语句if (category.name == "Featured")
从未被调用,我不知道为什么会这样。开始解析xpath并将链接存储到数组中。感谢您提供任何帮助。
答案 0 :(得分:-2)
最好检入调试器。有时白色空间会导致问题。许多程序员都犯了一个简单的错误。当我们从数据库获取数据时,可能会有一些前导空格。当我们与某个值进行比较时(认为没有前导空格),如果不修剪这些空间,它将无法进行比较。例如
string s1 = "TEST";
string s2 = " TEST";
if (s1 == s2) {
Console.WriteLine("Equal");
}
请使用修剪功能删除任何空格并进行比较。