Difference between revisions of "If and Then"
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(what error? Suggest removing the entire sentence actually) |
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true_statement is executed if condition evaluates to true. | true_statement is executed if condition evaluates to true. | ||
false_statement is executed if condition evaluates to false. | false_statement is executed if condition evaluates to false. | ||
− | An error occurs if condition does not evaluate to a boolean value. | + | An error (''What error? Run-time? Compile-time? What number? An exception perhaps? Please fix this'') occurs if condition does not evaluate to a boolean value. |
Revision as of 09:06, 28 June 2014
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English (en) │
This keyword precedes a condition, must be followed by then and may optionally be followed by else.
Documentation
Official documentation: FreePascal documentation
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 (What error? Run-time? Compile-time? What number? An exception perhaps? Please fix this) 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
begin
statement_one;
statement_two;
statement_three;
end;
Keywords: begin — do — else — end — for — if — repeat — then — until — while