sure-btn

@@ -2,7 +2,7 @@
  * @Author: Targaryen
  * @Date: 2017-06-23 11:43:44
  * @Last Modified by: Targaryen
- * @Last Modified time: 2017-07-24 17:49:36
+ * @Last Modified time: 2017-08-08 15:19:46
  */
 require('cart/select-coupon.page.css');
 const qs = require('yoho-qs');
@@ -106,7 +106,11 @@ $useCoupon.on('click', function() {
     }
 
     orderInfo('coupon_code', couponCodeArray.join(','));
-    goToBack();
+    if (couponCodeArray.length > 0) {
+        goToBack();
+    } else {
+        tip.show('请选择优惠券');
+    }
 });
 
 /**

@@ -100,7 +100,11 @@ $useCoupon.on('click', function() {
     }
 
     orderInfo('couponCode', couponCodeArray.join(','));
-    goToBack();
+    if (couponCodeArray.length > 0) {
+        goToBack();
+    } else {
+        tip.show('请选择优惠券');
+    }
 });
 
 /**