方法一：

int[] intArr = new int[100]; ArrayList myList = new ArrayList(); Random rnd = new Random(); while (myList.Count < 100) { int  = rnd.Next(1, 101); if (!myList.Contains()) myList.Add(); } for (int i = 0; i <100; i++) { intArr[i] = (int)myList[i]; Console.Write("{0} ", intArr[i]); Console.WriteLine(); }

方法二： public int[] GetNoRepeatArrayy(int arrLength) 2         { 3             int[] array = new int[arrLength]; 4             IList
    
      list = new List
     
      (); 5             //准备不重复的数据 6             for (int i = 0; i < array.Length; i++) 7             { 8                 list.Add(i); 9             }10             //将不重复的数据随机插入到数组中11             for (int j = (list.Count - 1); j > -1; j--)12             {13                 //获得数据的随机索引14                 int index = new Random(Guid.NewGuid().GetHashCode()).Next(0, list.Count);15                 //给数组赋值16                 array[j] = list[index];17                 //删除废弃数据，避免重复数据插入到数组中18                 list.RemoveAt(index);19             }20             return array;21         }