diff --git a/Host/Views.Mobile/Product/buy.cshtml b/Host/Views.Mobile/Product/buy.cshtml
index 89bf48c..18af9b6 100644
--- a/Host/Views.Mobile/Product/buy.cshtml
+++ b/Host/Views.Mobile/Product/buy.cshtml
@@ -459,7 +459,7 @@
                                     this.MoreBuyModel.CouponAmount = totalAmount * item.CouponValue * 0.1;
                                     } else {
                                     alert('非天卡无效');
-                                    this.OneBuyModel.CouponId = '0';
+                                    this.MoreBuyModel.CouponId = '0';
                                 }
                             }
                             return;
diff --git a/Host/Views/Product/buy.cshtml b/Host/Views/Product/buy.cshtml
index e0faecd..0411a8f 100644
--- a/Host/Views/Product/buy.cshtml
+++ b/Host/Views/Product/buy.cshtml
@@ -487,9 +487,6 @@
                             if (totalAmount < item.AllowMinAmount) {
                                 continue;
                             }
-                            if(newValue == '0'){
-                                this.OneBuyModel.CouponAmount = 0;
-                            }
                             if (item.Id == newValue) {
                                 if (item.CouponType == 1) {//满减
                                     this.OneBuyModel.CouponAmount = item.CouponValue;
@@ -503,6 +500,8 @@
                                     }
                                 }
                                 return;
+                            } else {
+                                this.OneBuyModel.CouponAmount = 0;
                             }
                         }
                     },
@@ -516,9 +515,6 @@
                             if (totalAmount < item.AllowMinAmount) {
                                 continue;
                             }
-                            if(newValue == '0'){
-                                this.OneBuyModel.CouponAmount = 0;
-                            }
                             if (item.Id == newValue) {
                                 if (item.CouponType == 1) {//满减
                                     this.MoreBuyModel.CouponAmount = item.CouponValue;
@@ -528,10 +524,12 @@
                                         this.MoreBuyModel.CouponAmount = totalAmount * item.CouponValue * 0.1;
                                      } else {
                                         alert('非天卡无效');
-                                        this.OneBuyModel.CouponId = '0';
+                                        this.MoreBuyModel.CouponId = '0';
                                     }
                                 }
                                 return;
+                            } else {
+                                this.MoreBuyModel.CouponAmount = 0;
                             }
                         }
                     },
diff --git a/Host/Views/Product/rebuy.cshtml b/Host/Views/Product/rebuy.cshtml
index e329c23..d764dac 100644
--- a/Host/Views/Product/rebuy.cshtml
+++ b/Host/Views/Product/rebuy.cshtml
@@ -271,9 +271,6 @@
                         if (totalAmount < item.AllowMinAmount) {
                             continue;
                         }
-                        if(newValue == '0'){
-                            this.OneBuyModel.CouponAmount = 0;
-                        }
                         if (item.Id == newValue) {
                             if (item.CouponType == 1) {//满减
                                this.OneBuyModel.CouponAmount = item.CouponValue;
@@ -287,8 +284,10 @@
                                 }
                             }
                             return;
+                        } else {
+                            this.OneBuyModel.CouponId = '0';
                         }
-                        }
+                    }
                 },
                 immediate: true
               },