gameobject setactive not work with gameobject find

Scripting
1

hello , i’m beginner with unity so if i ask wrong tell me. i created this script , which supposed to deactive the object , but why the object still showed in the scene & game ?

no error

public class startup : MonoBehaviour {
    GameObject theexecuteone;
    GameObject theexecutetwo;
    GameObject theexecutethree;
    GameObject theexecutefour;
    GameObject theexecutefive;
    GameObject theexecutesix;
    int helloaffff;
    void startupclear() {
        theexecuteone = GameObject.Find ("executionone");
        theexecutetwo = GameObject.Find ("executiontwo");
        theexecutethree = GameObject.Find ("executionthree");
        theexecutefour = GameObject.Find ("executionfour");
        theexecutefive = GameObject.Find ("executionfive");
        theexecutesix = GameObject.Find ("executionsix");
        theexecuteone.SetActive (false);
        theexecutetwo.SetActive (false);
        theexecutethree.SetActive (false);
        theexecutefour.SetActive (false);
        theexecutefive.SetActive (false);
        theexecutesix.SetActive (false);
   

    }

    // Use this for initialization
    void Start () {
        startupclear ();
    }
}
2

Does the script ever get run? Is it attached to a gameobject? Maybe add a Debug.Log statement to make sure its run.