int[] s = new int[5];
            Random number = new Random();
            for (int i = 0; i < 5; i++)            {
                s[i] = number.Next();
                Console.WriteLine(s[i]);
            }


            int max = s[0];
            for (int i = 1; i <= 4; i++)
            {
                if (s[i] >= max)
                {
                    max = s[i];
                }
            }
            Console.WriteLine("最大值为{0}", max);
            Console.ReadKey();