public void BookRoom(RoomContext roomContext)
{
Console.WriteLine("房间已经被预订，无法再被预订。。。");
}
public void CheckOutRoom(RoomContext roomContext)
{
Console.WriteLine("无此操作。。。");
}
public void UnSubscribeRoom(RoomContext roomContext)
{
Console.WriteLine("取消预订房间成功。。。");
roomContext.State = new FreeTimeState();
}
public void CheckInRoom(RoomContext roomContext)
{
Console.WriteLine("入住房间成功。。。");
roomContext.State = new CheckInState();
}