(
(
arith-arr-var arith-arr-var
INPUT char-var , char-var
..
l
arith_var
l[!arith_var
lu
char-arr-var char-arr-var
~~func
~r4unc
INPUT
The INPUT statement allows you
to
assign values to variables from the keyboard
while your program
is
being executed. The syntax of
the
INPUT statement
is
as
shown:
arith-arr-var arith-arr-var
INPUT char-var , char-var
..
l
arith_var
l[!arith_var
lu
char-arr-var char-arr-var
~r-func
str-func
where:
var
are simple arithmetic
or
character variables, subscripted references
to
an array
element,
or
substring references. The rows and columns references
to
an array
element must be enclosed
in
parentheses. Only one variable
is
required
in
an
INPUT statement, although many variables can
be
specified.
When
an INPUT statement
is
executed, it displays a question mark on
the
display
screen, and program execution halts. You must then enter a list
of
values
that
will
be assigned,
in
the order they are entered,
to
the variables listed
in
the I NPUT state·
ment. When
the
complete list has been entered, press EXECUTE
to
resume program
execution.
Subscripts
of
array variables
in
the INPUT statement are evaluated as they occur.
Thus, an assigned variable
in
an INPUT statement can be used subsequently
as
the
subscript
of
another variable
in
the same statement.
Character constants
that
contain
less
than 18 characters are padded on
the
right
with blanks
to
a length
of
18 before being assigned
to
character variables. Character
constants containing more than 18 characters are truncated on
the
right
to
a length
of
18 before being assigned. Character constants containing no characters (null)
are assigned as 18 blank characters.
81
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