/// <summary>
    /// 关闭ToolTip
    /// </summary>
    private void HideTip()
    {
        UGUITooltip Tip = UGUITooltip.Instance;

        if (Tip)
        {
            Tip.Hide();
        }
    }
    /// <summary>
    /// 显示ToolTip
    /// </summary>
    private void ShowToolTip()
    {
        UGUITooltip Tip = UGUITooltip.Instance;

        if (Tip && CurrentExitType == ExitType.BackToMainPage)
        {
            Tip.ShowTooltip("返回首页");
        }
        else if (Tip && CurrentExitType == ExitType.ExitProgram)
        {
            Tip.ShowTooltip("退出程序");
        }
    }
 // Use this for initialization
 void Start()
 {
     Instance = this;
     if (panel)
     {
         canvasGroup       = panel.GetComponent <CanvasGroup>();
         tip               = panel.GetComponentInChildren <Text>();
         contentSizeFitter = panel.GetComponent <ContentSizeFitter>();
     }
     if (canvas == null)
     {
         canvas       = gameObject.GetComponentInParent <Canvas>();
         canvasScaler = canvas.GetComponent <CanvasScaler>();
     }
     Hide();
 }