问个不同时间段的计算价钱的问题

Question

timer定时执行修改值
System.Threading.Timer timer= new System.Threading.Timer(new TimerCallback(Task), null, 0, 24*60*60 * 1000);//每24小时运行一次
private void Task(object source)
｛｝

Answer 1

private void button2_Click(object sender, EventArgs e)
        {
            int sum1 = 1;//一段时间内共出售三次，下面为每次的数量以及出售时间
            DateTime dt1 = new DateTime(2010, 10, 1, 16, 30, 30);
            int sum2 = 2;
            DateTime dt2 = new DateTime(2010, 10, 1, 17, 30, 30);
            int sum3 = 3;
            DateTime dt3 = new DateTime(2010, 10, 1, 18, 30, 30);
            int total1 = method(sum1,dt1);
            int total2 = method(sum2,dt2);
            int total3 = method(sum3,dt3);
            MessageBox.Show((total1+total2+total3).ToString());
        }        /// <summary>
        /// 单次出售总价
        /// </summary>
        /// <param name="sum">出售数量</param>
        /// <param name="dt">出售时间</param>
        /// <returns></returns>
        public int method(int sum,DateTime dt)
        {
            int price = 0;
            if (dt.TimeOfDay.CompareTo(sixteenTime.TimeOfDay) >= 0 && dt.TimeOfDay.CompareTo(seventeenTime.TimeOfDay) < 0)
            {
                price = 5;
            }
            else if (dt.TimeOfDay.CompareTo(seventeenTime.TimeOfDay) >= 0 && dt.TimeOfDay.CompareTo(eighteenTime.TimeOfDay) < 0)
            {
                price = 6;
            }
            else if (dt.TimeOfDay.CompareTo(eighteenTime.TimeOfDay) >= 0 && dt.TimeOfDay.CompareTo(nineteenTime.TimeOfDay) < 0)
            {
                price = 8;
            }
            return price * sum;
        }