diff --git a/pages/businessCard/printCard.vue b/pages/businessCard/printCard.vue
index a9c23b8..7a691c2 100644
--- a/pages/businessCard/printCard.vue
+++ b/pages/businessCard/printCard.vue
@@ -136,8 +136,25 @@ export default {
     },
     changeTime: function () {
       console.log(this.single)
-      this.deadline = this.single
-      this.getCouponStaticQR()
+      console.log(new Date(this.single).getTime())
+      console.log(new Date().getTime())
+      if(new Date(this.single).getTime()<new Date().getTime()){
+        uni.showToast({
+          title: '二维码有效期时间必须大于当前时间',
+          icon: 'none',
+          duration: 2000
+        })
+      }else{
+        uni.showToast({
+          title: '2',
+
+          duration: 2000
+        })
+
+        this.deadline = this.single
+        this.getCouponStaticQR()
+      }
+
     },
     // 小程序保存图片
     savePosterPath(url) {
diff --git a/pages/businessCard/provideCard.vue b/pages/businessCard/provideCard.vue
index 3e0beb9..3d30509 100644
--- a/pages/businessCard/provideCard.vue
+++ b/pages/businessCard/provideCard.vue
@@ -70,9 +70,10 @@ export default {
     }, 60000)
   },
   onUnload() {
-    if(this.timer) {
-      clearTimeout(this.timer);
-      this.timer = null;
+    let me = this
+    if(me.timer) {
+      clearTimeout(me.timer);
+      me.timer = null;
     }
   },
   onShow() {