(2)
Format
specification for string values
(a) !
When the values being displayed are character strings, specifying
an
excla-
mation mark in
"format
string" causes
just
the first character
of
the string
specified to be displayed.
(Example:)
10
A$=
"CDE "
20
PRINT USING "!" ;
A$
RUNJ
c
(b) & '-' '-' '
-"
--'
&
Specifying
11
& '-' '-' '-' '-' &
11
in the format string causes the first 2 + n charac-
ters
of
specified string expressions to be displayed (where n
is
the number
of
spaces between the two ampersands).
If
fewer than 2 + n characters
are specified in a string expression, characters displayed are left-justified
in the field defined
by
11
& '-' '-' '-' '-' & " .
(Examples:)
10
A$=
11
ABCDEFGH
11
20 PRINT USING
11
& '-' '-' '-' '-' &
11
;
A$
RUNJ
ABCDEF
10
A$=
11
XY
11
20 PRINT USING
11
& '-' '-' '-' '-' &
11
;
A$
RUN J
XY
(3) String constant
output
function
When any character other than those described above
is
included in the format
string
of
a PRINT USING statement,
that
character
is
displayed together with
the value specified following the semicolon.
(Example:)
lOA=
123
20PRINTUSING
"
DATA####
"
;A
RUN J
DATA'-'123
(4) Separation
of
USING
Usually, PRINT and USING are specified adjacent
to
each
other
; however,
it
is
possible to use them separately withiil. the same statement.
(Example:)
lOA=-12
:B=
14
:C=
12
20 PRINT A; B;USING
11
####
11
;C
'-------,-----
~----
~-----
Normal PRINT function USING function
RUN J
-1
2'-'
14 '-''-' 12
---------------
--
----------------
------------------
----
----
---------41
'
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