?guard let detailVC = vc as? PopGoodsDetailsController else {
? ? ? ? ? ? ? ? return
?? ?}
? model.isUnSaleThree= detailVC.unSaleThree
?guard let detailVC = vc as? PopGoodsDetailsController else {
? ? ? ? ? ? ? ? return
?? ?}
? model.isUnSaleThree= detailVC.unSaleThree