Reference var by int

Unity Engine
1

How do I reference a variable by an int. The code underneath doesn’t work.

var Tex0 : Texture2D;
var Tex1 : Texture2D;
var Tex2 : Texture2D;

function UpdateSpecialAttackGUI(number : int) {
guiTexture.texture = Tex+(number);
}

2

You can’t construct variable name like a string, in this case I would replace variables to an array of textures:

var textures : Texture2D[];

function UpdateSpecialAttackGUI(number : int) {
guiTexture.texture = textures[number]; 
}
3

Ah yes. Of course. Thx.