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Executes a statement or statement block depending on specified conditions.
 
IF condition1 THEN
    [statementblock-1]
[ELSEIF condition2 THEN
    [statementblock-2]]...
[ELSE
    [statementblock-n]]
END IF
 
IF condition THEN statements [ELSE statements]
 
    ■ condition1          Any expression that can be evaluated as
      condition2          true (nonzero) or false (zero).
    ■ statementblock-1    One or more statements on one or more lines.
      statementblock-2
      statementblock-n
    ■ 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
 
See Also    ◄ON...GOSUB►    ◄ON...GOTO►    ◄SELECT CASE►