5月9日 数组复习

一、//输入班级人数，根据人数创建数组

            //存储语文，数学，英语成绩

            //求每个人的平均分

            //Console.Write("请输入班级人数：");

            //int a = int.Parse(Console.ReadLine());

            //double[,] fenshu = new double[a, 3];

            //for (int i = 0; i < a; i++)

            //{

            //    Console.Write("请输入第" + (i + 1) + "个人的语文成绩：");

            //    fenshu[i, 0] = double.Parse(Console.ReadLine());

            //    Console.Write("请输入第" + (i + 1) + "个人的数学成绩：");

            //    fenshu[i, 1] = double.Parse(Console.ReadLine());

            //    Console.Write("请输入第" + (i + 1) + "个人的英语成绩：");

            //    fenshu[i, 2] = double.Parse(Console.ReadLine());

            //}

            //for (int i = 0; i < a; i++)

            //{

            //    double sum = fenshu[i, 0] + fenshu[i, 1] + fenshu[i, 2];

            //    Console.WriteLine("第"+(i+1)+"个人的平均分是："+sum/3);

            //}

 

            //Console.ReadLine();

 

 

 

二、            //五个候选班长，20人投票。

            //（输入1-5来表示支持哪个人）

            //最后查看票数，看那个人胜出。

            //int[] piao = new int[20];

            //Console.WriteLine("投票选班长，输入1~5表示支持哪一位！");

            //Console.WriteLine("1：张三     2：李四     3：王五       4：赵六        5：冯七");

            //for (int i = 0; i < 20;i++ )

            //{

            //    Console.Write("请第"+(i+1)+"个人进行投票：");

            //    piao[i] = int.Parse(Console.ReadLine());

            //}

            //int fei = 0;

            //int[] shu = new int[] { 0, 0, 0, 0, 0 };

            //for (int i = 0; i < 20; i++)

            //{

            //    switch (piao[i])

            //    {

            //        case 1:

            //            shu[0]++;

            //            break;

            //        case 2:

            //            shu[1]++;

            //            break;

            //        case 3:

            //            shu[2]++;

            //            break;

            //        case 4:

            //            shu[3]++;

            //            break;

            //        case 5:

            //            shu[4]++;

            //            break;

            //        default:

            //            fei++;

            //            break;

            //    }

            //}

 

 

 

三、            //输入n个手机号，做抽奖活动

            Console.Write("请输入手机号的个数：");

            int n = int.Parse(Console.ReadLine());

            string []hao=new string[n];

            for (int i = 0; i < hao.Length; i++)

            {

                Console.Write("请输入第"+(i+1)+"个手机号码：");

                hao[i] = Console.ReadLine();

            }

            Console.WriteLine("所有号码输入完毕，请按回车键开始执行号码滚动！");

            Console.ReadLine();

            

            Random ran = new Random();

            for (int i = 0; i < 50; i++)

            {

                //  清屏

                Console.Clear();

                int sui = ran.Next(hao.Length);

                Console.Write("中奖号码："+hao[sui]);

                //等待，暂停100毫秒

                System.Threading.Thread.Sleep(100);

            }

            //作弊代码

            //Console.Clear();

            //Console.Write("中奖号码：110" );

            Console.ReadLine();