Write a program that lets you know if you can have a key or not, based on your role at the school.
First ask for the user’s role at the school. They can be a student, administrator, or a teacher. (And remember that capitalization is important! ‘Student’ is not the same as ‘student’.)
Example 1: Administrator or Teacher
For example, if this was the input:
Are you an administrator, teacher, or student?: teacher
This should be the output:
Administrators and teachers get keys!
Example 2: Student
And if this was the input:
Are you an administrator, teacher, or student?: student
This should be the output:
Students do not get keys!
(Note: You should also be able to handle a situation where the user enters a value other than administrator, teacher or student and tell them they must be one of the three choices!)
Example 3: Other
If they input anything else:
Are you an administrator, teacher, or student?: secretary
This should be the output:
You can only be an administrator, teacher, or student!
Ответ:
Delphi
Можно считать, но проще простой перестановкой символов.
unit Unit3;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls;
type
TForm3 = class(TForm)
Edit1: TEdit;
Memo1: TMemo;
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
procedure ReDo;
public
end;
var
Form3: TForm3;
implementation
{$R *.dfm}
procedure TForm3.Button1Click(Sender: TObject);
begin
Memo1.Clear;
redo;
end;
procedure TForm3.ReDo;
var
s, s1, s2, s3 : string;
begin
s := edit1.Text;
s1 := s[1];
s2 := s[2];
s3 := s[3];
Memo1.Lines.Add(format(‘1-я цифра %s’,[s1]));
Memo1.Lines.Add(format(‘2-я цифра %s’,[s2]));
Memo1.Lines.Add(format(‘3-я цифра %s’,[s3]));
Memo1.Lines.Add(format(‘Получилось число %s’,[s3+s2+s1]));
end;
end.