如何在列表中查找重复项并按出现次数对其进行排序 [英] How to find duplicates in list and sort them by number of appearance

问题描述

是否有一种简单的方法来查找列表中的重复项，然后按出现次数对它们进行排序?另外，应删除重复项.

Is there a easy way to find duplicates in list, and then sort them by number of appearance? Also, duplicates should be removed.

例如.您有这样的List<String>:

List<String> = new List<String>{"6","1","2","2","4","6","5","1","6","6","2"};

问题是，如何将此列表转换为->"6"，"1"，"2"，"4"，"5"?

Question is, how to convert this list into -> "6", "1", "2", "4", "5"?

推荐答案

使用Linq.Distinct()

List<String> list = new List<String>{"6","1","2","2","4","6","5","1","6","6","2"};
list = list.Distinct().ToList();

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