private void Start()
    {
        userName = PlayerPrefsImpl.GetStringValue(PlayerPrefsKey.UserName, "オリバー");
        Debug.Log("userName : "******"myCoin : " + myCoin);
    }
 public void SetAndSaveInteger(PlayerPrefsKey playerPrefsKey)
 {
     PlayerPrefsImpl.SetInteger(playerPrefsKey, myCoin);
 }
 public void SetAndSaveString(PlayerPrefsKey playerPrefsKey, string text)
 {
     userName = text;
     PlayerPrefsImpl.SetString(playerPrefsKey, text);
 }