How to declare variable in a for loop?

I am trying to replace all of the code below with a for loop. I also want to do the same thing with number variables as apposed to sprites. I have tried a bunch of things but nothing works yet.


var lineDrawing1:Sprite = new Sprite();
var lineDrawing2:Sprite = new Sprite();
var lineDrawing3:Sprite = new Sprite();
var lineDrawing4:Sprite = new Sprite();
var lineDrawing5:Sprite = new Sprite();
var lineDrawing6:Sprite = new Sprite();
var lineDrawing7:Sprite = new Sprite();
var lineDrawing8:Sprite = new Sprite();
var lineDrawing9:Sprite = new Sprite();
var lineDrawing10:Sprite = new Sprite();
var lineDrawing11:Sprite = new Sprite();
var lineDrawing12:Sprite = new Sprite();
var lineDrawing13:Sprite = new Sprite();
var lineDrawing14:Sprite = new Sprite();
var lineDrawing15:Sprite = new Sprite();
var lineDrawing16:Sprite = new Sprite();
var lineDrawing17:Sprite = new Sprite();
var lineDrawing18:Sprite = new Sprite();