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LIMBAJUL DE PROGRAMARE PASCAL – Scrierea unui program care permite crearea unei baze de date folosind o list? liniar?.
program baza_de_date;
TYPE
ElemPointer = ^Elem;
Elem = record
nume : string[20];
adresa : string[30];
tel : integer;
leg : ElemPointer
end;
VAR
h : ElemPointer;
PROCEDURE creare_lista;
VAR
p: ElemPointer;
ch : char;
BEGIN
h:=nil;
repeat
write ('Introduce?i valori (D/N) ? : '); readln (ch);
if ch = 'N' then exit;
if ch = 'D' then
begin
if h = nil then
begin
new(h);
p:=h
end
else
begin
new(p^.leg);
p:=p^.leg
end;
with p^ do
begin
write ('Numele : '); readln(nume);
write ('Adresa : '); readln(adresa);
write ('Telefon : '); readln(tel);
writeln
end;
p^.leg:=nil
end
until false
END;
PROCEDURE citire_lista;
VAR
p:ElemPointer;
BEGIN
p:=h;
while p<>nil do
begin
with p^ do
begin
writeln('Numele : ',nume);
writeln('Adresa : ',adresa);
writeln('Telefon: ',tel);
end;
writeln;
p:=p^.leg
end
END;
PROCEDURE salvare(p:ElemPointer);
Var f: text;
BEGIN
assign(f, 'date.dat');
rewrite(f);
repeat
with p^ do
begin
writeln(f,nume);
writeln(f,adresa);
writeln(f,tel);
writeln(f);
end;
p:=p^.leg
until p=nil;
writeln(f,'!');
close(f);
writeln('OK')
END;
BEGIN
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