QBasic 1.1: CONST Statement

Explanation

Declares one or more symbolic constants.

Useful and cross-version information about the programming environments of QBasic, QuickBasic and Visual Basic for DOS.

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CONST constantname = expression [,constantname = expression]...

constantname	The name of the constant. This name can consist of up to 40 characters and must begin with a letter. Valid characters are A-Z, 0-9, and period (.).
expression	An expression that is assigned to the constant. The expression can consist of literals (such as 1.0), other constants, any arithmetic or logical operators except exponentiation (^), or a single literal string.


CONST PI = 3.141593
INPUT "Radius of Circle: "; r
PRINT "Area = "; PI * r ^ 2