RosettaCodeData/Task/Conditional-structures/OxygenBasic/conditional-structures.oxy

if a then b=c else b=d

if a=0
  b=c
elseif a<0
  b=d
else
  b=e
end if

select case a
  case 'A'
  v=21
case 'B'
  v=22
case 1 to 64
  v=a+300
case else
  v=0
end select