ArrayList集合-[习题]--C#

：向集合中添加10个元素，计算平均值，求最大、最小值。

             double sum = ;
             list.AddRange(new int[] { , , , , , , , ,  });
             int Max, Min;
             Max = Min = (int)list[];

             for (int i = ; i < list.Count; i++)
             {
                     //最大值
                 if(Max < (int)list[i])
                 {
                     Max = (int)list[i + ];
                 }
                     //最小值
                 else if (Min > (int)list[i])
                 {
                     Min = (int)list[i];
                 }
                 else { }
                 sum += Convert.ToDouble(list[i]);
             }
             for (int i = ; i < list.Count; i++)
             {
                 Console.Write(list[i] + " ");
             }
             Console.WriteLine("\nAvg = {0}",sum / list.Count);
             Console.WriteLine("Max = {0}", Max);
             Console.WriteLine("Min = {0}", Min);

：把10个随机数存储到集合中，且不重复

             Random rd = new Random();
             for (int i = ; i < ; i++)
             {
                 int n = rd.Next(, );
                 if (!list.Contains(n))
                 {
                     list.Add(n);
                 }
             }
             for (int i = ; i < list.Count; i++)
             {
                 Console.WriteLine(list[i]);
             }

完成。