122-32000 Parallax Inc, 122-32000 Datasheet - Page 225
122-32000
Manufacturer Part Number
122-32000
Description
MANUAL PROPELLER
Manufacturer
Parallax Inc
Specifications of 122-32000
Accessory Type
Manual
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
Propeller Education (PE) Kit
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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IFNOT
Test condition(s) and execute a block of code if valid (negative logic).
((PUB ┆ PRI))
Explanation
IFNOT
executes a block of code.
IFNOT
following optional
until a valid condition line is found, then the associated ElseIfStatement(s), or
ElseIfNotStatement(s), block is executed. The optional ElseStatement(s) block is executed if
no previous valid condition lines are found.
A “valid” condition is one that evaluates to
or
See IF on page 220 for information on the optional components of
IFNOT
〈 ELSEIF
〈 ELSEIFNOT
〈 ELSE
ELSEIFNOT
•
•
•
•
•
IfNotStatement(s)
ElseIfStatement(s)
ElseIfNotStatement(s)
ElseStatement(s)
is one of the three major conditional commands (
tests Condition(s) and, if false, executes IfNotStatement(s). If Condition(s) is true, the
Condition(s)
IfNotStatement(s)
Condition(s) is false.
ElseIfStatement(s)
the previous Condition(s) are invalid and the
ElseIfNotStatement(s)
all the previous Condition(s) are invalid and the
ElseStatement(s)
the previous Condition(s) are invalid.
Condition(s)
Condition(s)
) or evaluates to
Condition(s)
ELSEIF
is one or more Boolean expressions to test.
〉
〉
…
is an optional block of one or more lines of code to execute when all
is a block of one or more lines of code to execute when the
is an optional block of one or more lines of code to execute when all
〉
…
IFNOT
Condition(s), and/or
is an optional block of one or more lines of code to execute when
TRUE
is the complementary (negative) form of
for a positive conditional statement (
4: Spin Language Reference –
FALSE
ELSEIFNOT
for a negative conditional statement (
ELSEIF
IF
ELSEIFNOT
,
IFNOT
Condition(s), are tested, in order,
’s Condition(s) is true.
Propeller Manual v1.0 · Page 225
, and
’s Condition(s) is false.
IFNOT
CASE
ELSEIF
.
IF
) that conditionally
.
).
IFNOT
IFNOT
’s
,
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