switch （）
            {
                case "Mon":
                    Console.WriteLine("今天是星期一，学英语");
                    break;

                case "Tur":
                    Console.WriteLine("今天是星期二，学画画");
                    break;

                case "Wed":
                    Console.WriteLine("今天是星期三，学音乐");
                    break;

                case "Thu":
                    Console.WriteLine("今天是星期四，学数学");
                    break;

                case "Fri":
                    Console.WriteLine("今天是星期五，学舞蹈");
                    break;

                default:
                    Console.WriteLine("今天是星期日，放假休息");
                    break;
            }

哪点上和asp有关？

switch (DateTime.Now.DayOfWeek)//DateTime.Now.DayOfWeek获得系统日期的星期几
 {
              //DayOfWeek枚举值
              case DayOfWeek.Monday:
                    Console.WriteLine("今天是星期一，学英语");
                    break;

                case DayOfWeek.Tuesday:
                    Console.WriteLine("今天是星期二，学画画");
                    break;

                case DayOfWeek.Wednesday:
                    Console.WriteLine("今天是星期三，学音乐");
                    break;

                case DayOfWeek.Thursday:
                    Console.WriteLine("今天是星期四，学数学");
                    break;

                case DayOfWeek.Friday:
                    Console.WriteLine("今天是星期五，学舞蹈");
                    break;

                case DayOfWeek.Sunday:
                    Console.WriteLine("今天是星期日，放假休息");
                    break;
}