QBasic 1.1: IF Keyword

Syntax

IF condition1 THEN
   [statementblock-1]
[ELSEIF condition2 THEN
   [statementblock-2]]...
[ELSE
   [statementblock-n]]
END IF
 
IF condition THEN statements [ELSE statements]

Description / Parameter(s)

condition1
condition2
Any expression that can be evaluated as true (nonzero) or false (zero).
statementblock-1
statementblock-2
statementblock-n
One or more statements on one or more lines.
statements One or more statements, separated by colons.

Example

INPUT "1 or 2? ", i% IF i% = 1 OR i% = 2 THEN PRINT "OK" ELSE PRINT "Out of range" END IF