Difference between revisions of "If and Then"

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[[Category:Control Structures]]

Revision as of 18:41, 30 September 2013

English (en)

This keyword precedes a condition, is required to be followed by then and may optionally be followed by else.

If then

  if condition
    then true_statement
    else false_statement;

Condition is a Boolean expression that evaluates to true or false. true_statement is executed if condition evaluates to true. false_statement is executed if condition evaluates to false. An error occurs if condition does not evaluate to a boolean value.

More statements in "if then" statement

If you need two or more statements for true_statement or false_statement, place them within a begin ... end Block.

  if boolean_condition then

Keywords: begindoelseendforifrepeatthenuntilwhile