在数组中随机插入数字且不重复

产生一个int数组，长度为100，并向其中随机插入1-100，并且不能重复。（两种方法）

1，

     List<int> myList = new List<int>();

            Random ran = new Random();

            while (myList.Count<100)

            {

                int num = ran.Next(1, 101);

                if (!myList.Contains(num))

                {

                    myList.Add(num);

                }

            }

            foreach (int item in myList)

            {

                Console.WriteLine(item);

            }

            Console.WriteLine(myList.Count);

            Console.ReadLine();

   2，

       HashSet<int> myList = new HashSet<int>();

            Random ran = new Random();

            while (myList.Count<100)

            {

                int num = ran.Next(1, 101);

                myList.Add(num);

            }

            foreach (int item in myList)

            {

                Console.WriteLine(item);

            }

            Console.WriteLine(myList.Count);

            Console.ReadLine();