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    Length: 512 (0x200)
    Types: TextFile
    Names: »KONTROL.PAS«
└─⟦092727b26⟧ Bits:30005927 Demoprogrammer til Pascal bog (Jet-80)
    └─⟦this⟧ »KONTROL.PAS« 
PROGRAM kontrol;
  TYPE
    str2 = STRING(.2.);
  
  VAR
    streng : str2;
    tal, test : INTEGER;
  
  BEGIN
    WRITE(CLRHOM);
    REPEAT
      GOTOXY(0, 5);
      WRITE(CLREOL, 'Tast et heltal fra 20 til 30: ');
      BUFLEN := 2;
      READLN(streng);
      VAL(streng, tal, test);
    UNTIL (test = 0) AND (20 <= tal) AND (tal <= 30);
    WRITELN('Det indtastede tal er ok');
  END.
«eof»