HP SunSoft Pascal 4.0 Manuale Utente Scaricare il pdf (Pagina 34)

100

101

10 Pascal 4.0 User’s Guide

Now run the program by typing the name of the executable ﬁle. The output

follows:

An Interactive Pascal Program

In Pascal, the predeﬁned ﬁle variable, input, is equivalent to the operating

system standard input ﬁle, stdin. Similarly, the ﬁle variable, output, is

equivalent to the standard output ﬁle, stdout.

Following is a Pascal program that copies input to output. Use an editor to

type the code on your system and store it in a ﬁle called copy.p:

hostname% temp

Fahrenheit Celsius

---------- -------

32 0.00

33 0.56

34 1.11

program copy(input, output);

{ This program copies input to output. }

var

c: char;

begin

while not eof do begin

while not eoln do begin

read(c);

write(c)

end;

readln;

writeln

end

end. { copy }

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HP SunSoft Pascal 4.0 Manuale Utente Pagina 34

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