c#排序算法结果如果有重复数字只输出其中一个怎么实现 ？

Question

c#排序算法结果如果有重复数字只输出其中一个怎么实现 

Answer 1

用lambint[] arr = new int[] { 11, 12, 13, 1, 2, 4, 5, 6, 7, 1, 2, 4, 5 };var newArr = arr.Distinct().OrderBy(c => c); //去重、升序foreach (var obj in newArr)Console.Write("{0,4}", obj);Console.ReadKey();

Answer 2

List<int> list = new List<int>() { 11, 22, 33, 44, 55, 11 };list= list.GroupBy(m=>m).Select(m=>m.First()).ToList();