如何编辑集合

问题描述

亲爱的朋友们，

我有一些问题，

现在我有一个字符串集合但该集合有多个相同的项目，我的愿望，找到相同的项目并添加删除其中一个后的计数器。

Hi dear friends,
I have some question,
Now I have a string collection but that collection has multiple same item, my wish , find same item and add counter after remove one of the.

MatchCollection matches = Regex.Matches(text.ToLower(), pattern);
                    for (int i = 0; i < matches.Count; i++)
                    {
                        string s = "<li>" + matches[i] + "</li>";
                        string[] stringArray = s.Split(' ');
                        if (stringArray.Length>1)
                        {
                            for (int j = 0; j < matches.Count; j++)
                            {
                                if (matches[i].ToString() == matches[j].ToString() && i == j)
                                {
                                    counter++;
                                }
                            }
                            var newWord=new Vocabulary {Word = matches[i].ToString(),Frequency = counter};
                            counter = 0;
                            listSentences.Add(newWord);
                        }
                    }

这是我的代码，但根据我没有工作。

我的错误在哪里？



谢谢你

This is my Code but not working according to me.
Where is the my mistake?

Thank you

推荐答案

class Program
   {
       static void Main(string[] args)
       {
           var s1 = new List<string> { "Item1", "Item2", "Item1", "Item2" };
           var finalResult = new List<FinalResult>();
           foreach (var item in s1.Distinct())
           {
               string item1 = item;
               var data = s1.Where(x => x == item1);
               if(data.Count()>1)
               {
                   finalResult.Add(new FinalResult{ItemName = item1,Count = data.Count()});
               }
           }

           Console.ReadLine();
       }
       public class FinalResult
       {
           public string ItemName { get; set; }
           public int Count { get; set; }
       }
   }

希望这有助于

Hope this helps

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