public ActionResult Index()
        {
            List <AuthMenuModel> menuItemList = AuthMgr.GetUserMenuList();
            var topLevelMenuList = menuItemList.Where(item => !menuItemList.Exists(tm => tm.SysNo == item.ParentSysNo) && item.IsDisplay == "1").ToList();

            foreach (var mItemL1 in topLevelMenuList)
            {
                if (!string.IsNullOrWhiteSpace(mItemL1.LinkPath))
                {
                    return(Redirect(mItemL1.LinkPath));
                }
                List <AuthMenuModel> mItemL2List = menuItemList.FindAll(x => x.ParentSysNo == mItemL1.SysNo && x.IsDisplay == "1");

                if (mItemL2List.Count == 0 && string.IsNullOrWhiteSpace(mItemL1.LinkPath))
                {
                    continue;
                }
                AuthMenuModel menu = mItemL2List.FirstOrDefault(f => f.IsDisplay == "1" && !string.IsNullOrWhiteSpace(f.LinkPath));
                if (menu != null)
                {
                    return(Redirect(menu.LinkPath));
                }
            }
            return(Content(""));

            /*经测试以下语句无效
             * if (CurrUser.MasterSysNo.GetValueOrDefault() > 0)
             * {
             *
             *  return Redirect(Url.Action("MapIndex", "Home"));
             * }
             * else
             * {
             *  return Redirect(Url.Action("Index", "Company"));
             * }
             */
        }