diff --git a/pages/cart/cart/cart.js b/pages/cart/cart/cart.js
index bb3a0f7..7277b7e 100644
--- a/pages/cart/cart/cart.js
+++ b/pages/cart/cart/cart.js
@@ -94,9 +94,10 @@ Page({
 		//--- 看后台是不是有开通等级卡 ---
 		if(conf.switch_list){
 			   var s_list=JSON.parse(conf.switch_list);
+			   var user=getApp().globalData.userInfo;	
 			   //如果后台有开启等级价的功能
-			   if(parseInt(s_list.rank_switch)==2){	   
-				   var user=getApp().globalData.userInfo;				   
+			   if(user &&  parseInt(s_list.rank_switch)==2 && user['card_expiredate']){
+							   
 				   var str = user['card_expiredate'].replace(/-/g, '/');
 				   var end = new Date(str);
 				   end = Date.parse(end) / 1000;