c#列表中的唯一值(完全删除重复)

Question

如何实现以下目标?

输入列表:A、A、B、B、B、C、D、E、E、F

期望输出列表:C,D,F

Answer 1

你可以使用group by和take只包含一个元素的组:

var input = new string[] {"A","A","B","B","B","C","D","E","E","F"};
var result = input.GroupBy(x => x).Where(x => x.Count() == 1).Select(x => x.Key).ToList();

在线演示:https://dotnetfiddle.net/j2vraK