if
condition then
statement else
statement
if
condition
then
statement else
statement
if
condition
then
statement
else
statement
if
condition then
statementList
else
statement
if
condition then
statementList
else
statementList
end
if
Condition yields true
or false
.
The if
structure tests for the specified condition and, if the condition is true
, executes the statement or series of statements that follow. If the condition is false
and an else
keyword is specified, the if
structure executes the statement or series of statements that follow the else
keyword instead.