diff --git a/coupon/lookCard.html b/coupon/lookCard.html
index 428a132..69bc6f6 100644
--- a/coupon/lookCard.html
+++ b/coupon/lookCard.html
@@ -22,7 +22,7 @@
         </div>
 
         <div v-show="!loading">
-            <img class="backPresTy" @click="backHandler"
+            <img class="backPresTy" @click="backHandler" v-if="backShow"
                 src=" https://lsxdemall.oss-cn-beijing.aliyuncs.com/MarketingSystem/img/backprepageBtn.png" alt="">
             <p class="nav-title">卡密</p>
             <div class="topBox">
@@ -107,6 +107,7 @@
                         toastShow: false,
                         toastTip: '',
                         loading: true,
+                        backShow: sessionStorage.getItem('backShow')
                     };
                 },
 
@@ -140,7 +141,6 @@
                         });
                     },
 
-
                     // 单条弹框
                     openDialog (tip) {
                         this.toastShow = true;
@@ -153,8 +153,7 @@
 
                     backHandler () {
                         history.go(-1);
-                    }
-
+                    },
                 }
             })
         </script>
diff --git a/homepage.html b/homepage.html
index d7c9b75..3328214 100644
--- a/homepage.html
+++ b/homepage.html
@@ -380,6 +380,7 @@
             }, 1000);
           }
         } else { //兑换码
+          localStorage.setItem('backShow', '');
           data.token = localStorage.getItem('token');
           req.axiosPost('/key/products', data).then(res => {
             if (res.code == 200) {
@@ -400,6 +401,7 @@
                     .then(({ data, code, }) => {
                       if (code === 200) {
                         localStorage.setItem('orderNumber', data[0].order_number);
+                        localStorage.setItem('backShow', 1);
                         window.location.href = './coupon/lookCard.html';
                       }
                     });