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[Pascal] Exemplo de Menu


will09
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program menus;
uses CRT;

var opcao: char;


{ Escrevendo rotinas para cada uma das opcoes...
você também pode, ao invés de escrever rotinas, colocar blocos de código
depois dos dois pontos, lembrando de colocar "begin" e "end" no final de
cada um deles }

procedure opcao1;
begin
   clrscr;
   writeln ('Essa é a opção 1');
   readkey;
end;

procedure opcao2;
begin
   clrscr;
   writeln ('Essa é a opção 2');
   readkey;
end;

procedure opcao3;
begin
   clrscr;
   writeln ('Essa é a opção 3');
   readkey;
end;

{ bloco de código principal do programa... }

begin
    repeat
         repeat
              clrscr;
              writeln ('------------ Exemplo de Menu -----------');
              writeln ('[1] Opção 1');
              writeln ('[2] Opção 2');
              writeln ('[3] Opção 3');
              writeln ('[4] Sair');
              opcao := readkey;
         Until (opcao >= '1') and (opcao <= '4');

         Case opcao of
             '1' :  opcao1;
             '2' :  opcao2;   
             '3' :  opcao3;
         end;
     Until (opcao = '4');
end.

Espero que te ajude!

PEACE

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