setLabel Unity3D

using UnityEngine;
using System.Collections;

public class NewBehaviourScript : MonoBehaviour {
    GameObject Player;
    UILabel Script;
    int i = 0;
    void MyClick()
    {
        Player = GameObject.FindGameObjectWithTag("Player");
        Script = Player.GetComponent<UILabel>();
        if (i == 0)
        {
            Script.text = "AA";
            i = 1;
        }
        else
        {
            Script.text = "BB";
            i = 0;
        }

    }

}