宿舍值日.txt

using System;
public class OnDuty
{
	public static void Main()
	{
		int today;
        do
		{
			Console.WriteLine ("Please input what day it is today:\n\n1 2 3 4 5 6 7 will be ok.and -1 is quit");
			today=int.Parse (Console.ReadLine ());
			switch(today)
			{
				case 1:
					Console.WriteLine ("\nA is on duty today.He must make our room cleanly.");
					break;
				case 2:
					Console.WriteLine ("\nB is on duty today.He msut make our room cleanly.");
					break;
				case 3:
					Console.WriteLine ("\nC is on duty today.He msut make our room cleanly.");
					break;
				case 4:
					Console.WriteLine ("\nD is on duty today.He must make our room cleanly.");
					break;
				case 5:
					Console.WriteLine ("\nE is on duty today.He msut make our room cleanly.");
					break;
				case 6:
					Console.WriteLine ("\nF is on duty today.He must make our room cleanly.");
					break;
				case 7:
					Console.WriteLine ("\nG is on duty today.He must make our room cleanly.");
					break;
				case -1:
					break;
				default:
					Console.WriteLine ("Invalid input.Please retry:");
					break;
			}
		}while(today!=-1);
	}
}