void Awake()
    {
        selectLevelPanel = GameObject.Find("SelectLevelPanel").GetComponent <SelectLevelPanel>();

        //关卡
        if (level == 1)
        {
            selectLevelPanel.SetLevelNode(this.gameObject);
        }
    }
    /// <summary>
    /// 选择关卡被单击
    /// </summary>
    public void ChangeLevel()
    {
        Debug.Log("当前解锁关卡:" + GameManager.level + " - " + this.level);

        if (GameManager.level >= this.level - 1)
        {
            //关闭之前的关卡
            selectLevelPanel.CancelRoadSign();
            selectLevelPanel.level = this.level;
            selectLevelPanel.SetLevelNode(this.gameObject);

            //显示当前关卡路标
            notOpen.SetActive(false);
            roadSign.SetActive(true);
            levelSprite.enabled = true;

            GameManager.selectLevel = this.level;
        }
    }