Hey,can anyone help me?

[LeVnteen]

I am trying to make a game in which you can level up but i cant seem to get it,i want it so that when you get a certain amount of exp,your stats go up?How would i be able to do this?
var usera : int
var userd : int
var userl : int
usera:=15
userd:=20
userl:=30

[LolADuck]

exp:int:=0

var usera : int :=15
var userd : int :=20
var userl : int :=30
%have exp go up when a task is complete (depends on game
if exp= 300 then%when exp reaches a certain amount have stats go up
usera+=15
userd+=20
userl+=30
end if

[TokenHerbz]

@MODS: please move this post to the correct topic.