SELECT CASE (SWICH CASE)

switch (e.CommandName)

        {

            case "1":

                Console.WriteLine("Case 1");

                break;

            case "2":

            case "3":

                Console.WriteLine("Case 2.3");

                break;

            default:

                Console.WriteLine("Case Else");

                break;

        }

記得要加break....(淚)