到购买二级宝石的时间，刷新下购买按钮显示

chenxin

2020-12-08 ff228d1c9534d6e66b241563fd31eb81af8a38d2

 Assets/Scripts/TowerDefense/UI/EndlessUIStart.cs

@@ -636,6 +636,7 @@
            if (!isUpgradeTowerLevel && startTime >= JsonDataCenter.DOUBLE_GEM_TIME)
            {
                EndlessGameUI.instance.UpgradeAllTowerMinLevel(1);
                EndlessRandomTower.instance.UpdateDescDisplay();
                isUpgradeTowerLevel = true;
            }