Denso BHT-200QW Spezifikationen Seite 15

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Chapter 1. Software Overview for the BHT
7
Defining and declaring user
Defining and declaring userDefining and declaring user
Defining and declaring user-
--
-defined function
defined functiondefined function
defined functions more easily
s more easilys more easily
s more easily
BHT-BASIC 3.5 has added FUNCTION…END FUNCTION, SUB...END SUB, and DECLARE
statements. With the former two, you may easily define your own functions—FUNCTION and
SUB. With the latter one, you may declare FUNCTION and SUB functions which are defined
in any other source files.
Scoping variables to be local or global
Scoping variables to be local or globalScoping variables to be local or global
Scoping variables to be local or global
(with PRIVATE
(with PRIVATE(with PRIVATE
(with PRIVATE or GLOB
or GLOB or GLOB
or GLOBAL
ALAL
AL statement)
statement) statement)
statement)
In BHT-BASIC 3.5, work variables and register variables may have "scope" to restrict the
access to them.
With the PRIVATE statement, you may declare a variable to be local. A local variable can only
be accessed by any routine in a file where it is defined. With the GLOBAL statement, you may
declare a variable to be global. A global variable can be accessed by any routine in a
program.
However, a variable used inside the FUNCTION or SUB function without declaration is
available only within a function where it is defined.
Since local variables are restricted in access, you can define them with a same name in
different files.
For details about the scope of variables, refer to Chapter 5, Section 5.5.
Defining constants
Defining constantsDefining constants
Defining constants
BHT-BASIC 3.5 can define constants.
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