Denso BHT-200QW Especificaciones descargar pdf (Pagina 290)

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Flow control statement

SELECT…CASE…END SELECT

Conditionally executes one of statement blocks depending upon the value of an expression.

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Syntax:

Syntax:Syntax:

Syntax:

SELECT conditionalexpression

CASE test1

[statementblock]

[CASE test2

[statementblock]]...

[CASE ELSE

[statementblock]]

END SELECT

Parameter:

Parameter:Parameter:

Parameter:

conditionalexpression, test1, and test2

A numeric or string expression.

Description:

Description:Description:

Description:

This statement executes one of statementblocks depending upon the value of

conditionalexpression according to the steps below.

(1) SELECT evaluates conditionalexpression and compares it with tests

sequentially to look for a match.

(2) When a match is found, the associated statementblock executes and then control

passes to the first statement following the END SELECT.

If no match is found, the statementblock following the CASE ELSE executes and

then control passes to the first statement following the END SELECT.

If you include no CASE ELSE, control passes to the first statement following the END

SELECT.

• If the SELECT statement block includes more than one CASE statement containing the

same value of test, only the first CASE statement executes and then control passes to

the first statement following the END SELECT.

• If a CASE followed by no executable statement is encountered, control passes to the first

statement following the END SELECT.

• conditionalexpression (numeric or string) and tests must agree in type.

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