我怎样才能将部分 url 与 c#

Question

我有一个动态列表，如下几行https://www.example.com/*/post/https://www.example2.com/videos/*https://www.example3.com/photo/我如何匹配 C# 以下 url（返回 true）https://www.example.com/user123/post/http://www.example.com/user123/post/abchttps://www.example2.com/videos/1234https://www.example2.com/videos/1234/5678http://www.example2.com/videos/1234/5678http://example2.com/videos/1234/video.asp?id=1也许我可以使用 UriTemplate 但 url 有很多部分。他们没有静态格式。

Answer 1

试试这个使用正则表达式的方法：

static void Main(string[] args)

{

  var urls = new string[] { "https://www.example.com/*/post/", "https://www.example2.com/videos/*" };

  // here regex patterns are created: special characters are escaped and 

  // star, which means here "anything" is replaced by .+ which means "one or more of any charaters"

  var regexes = urls.Select(url => new Regex(url.Replace("/", @"\/").Replace(".", @"\.").Replace("*", ".+")));

  var toCheck = new string[]

  {

  "https://www.example.com/user123/post/",

  "http://www.example.com/user123/post/abc",

  "https://www.example2.com/videos/1234",

  "https://www.example2.com/videos/1234/5678",

  "http://www.example2.com/videos/1234/5678",

  "http://example2.com/videos/1234/video.asp?id=1"

  };

  var valid = toCheck.Where(url => regexes.Where(r => r.Match(url).Success).Any()).ToArray();

}