•
•
•
From
Basic
toSuperBASIC
100
REMark Roman
numbers
110
INPUT
number
120
RESTORE
210
130
FOR
type
= 1
TO
7
140
READ
letter$,
value
150
REPeat
output
160
IF
number
<
value:
EXIT
output
170
PRINT
letter$;
180
LET
number
=
number
- va Lue
190
END
REPeat
output
200
END
FOR
type
210
DATA
'M',1000,'D',500,'C',100,'L
'
,SO,'X',10,'V
'
,5,'I',1
You
should study the above examples carefully using dry runs
if
necessary
until
you
are sure that
you
understand them.
In
SuperBASIC
full
structuring features are provided
so
that program elements either
CONCLUSION
follow
in
sequence or
fit
into one another neatly All structures must be identified
to
the
system
and named. There are many unifying and simplifying features and many extra
facilities.
Most of these are explained and illustrated
in
the remaining chapters of this manual,
which should be easier
to
read than the Keyword and Concept Reference sections.
However,
it
is
easier
to
read because
it
does not give every technical detail and exhaust
every topic which
it
treats.
There
may,
therefore, be a few occasions when
you
need
to
consult the reference sections.
On
the other hand some major advances
are
discussed
in
the following chapters.
Few
readers
will
need
to
use
all
of them and
you
may find
It
helpful
to
omit certain
parts,
at
least
on
first reading.
12184
47
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