Create many gameobject from prefab with one script in one scene

I have three prefabs : A,B,C

How to instantiate those three in one script with something like this:

createObject(A) ?

I know that we have to create public variable in script, then drag the prefab into that script component. But what if the prefabs to instantiate is various.

 

If you expose a variable in your script, e.g. in unityscript: var objecta:GameObject; . ... then in the inspector you can drop a prefab on that object, and then in the script you can `instantiate` that prefab.

 

Thanks for reply, imaginaryhuman

In most cases, I need to instantiate different prefab at runtime, with the same script. How can I do this?

 

I found this way:

Instantiate(Resources.Load ("hero1", typeof(GameObject))) as GameObject;

is this the right way?