unity一个按钮实现开和关

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ButtonCll : MonoBehaviour {
    private int countint = ;
    public GameObject Seting;
    private bool count = true;
    // Use this for initialization
    void Start () {

    }

    // Update is called once per frame
    void Update () {
        // *******************************************第一种方法******************************************
        //每次点击来判断它的奇偶性
        if (Input .GetKeyUp (KeyCode.KeypadEnter))
        {

            countint++;
            if (countint %==)
            {
                Seting.SetActive(false);
            }
            else
            {
                Seting.SetActive(true);
            }
        }
        // *******************************************第二种方法******************************************
        if (Input .GetKeyDown (KeyCode .KeypadEnter ))
        {
            count = !count;
            if (count)
            {
                Seting.SetActive(false);
            }
            else
            {
                Seting.SetActive(true);
            }
        }
    }
}