bài 1:
uses crt;
var f:text;
a,b:integer;
begin
clrscr;
write('Nhap a: '); readln(a);
write('Nhap b: '); readln(b);
Assign(f,'baitap.txt'); rewrite(f);
write(f,'Hai so vua nhap la: ',a,' ',b);
close(f);
end.
Bài 2:
uses crt;
var f:text;
a,b:integer;
begin
Assign(f,'baitap.txt'); reset(f);
readln(f,a,b);
write('Hai so lay tu tep la: ',a,' va ',b);
close(f);
readln
end.
