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en:if

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If / Then (Statement)

Format

if boolean_expression then compound_statement
if boolean_expression then compound_statement else compound_statement


if boolean_expression then
statement(s)
end if


if boolean_expression then
statement(s)
else
statement(s)
end if

Description

A single line IF evaluates booleanexpr, when true the statement(s) following the then is executed, otherwise execution continues on the next line. There are also two forms of a multi-line if statement, one with a true block and one with a true and a false block of code to execute.

Example

print "Guess my letter - press a key"
# wait for the user to press a key
do
  a = key
  pause .01
until a <> 0
#
if chr(a) = "Z" then
   print "Yippie, you pressed the Z key!!!"
else
   print "darn, you pressed something else."
end if
#
end

History

0.9.4gMultiple line If/Then/Else/EndIf
1.1.0.0Added single line If/Then/Else
en/if.1471028458.txt.gz · Last modified: 2020/02/28 10:46 (external edit)