diff --git a/jero-web/src/views/documentManage/library/docDetail/index.vue b/jero-web/src/views/documentManage/library/docDetail/index.vue
index 572bb7446..e3ae74377 100644
--- a/jero-web/src/views/documentManage/library/docDetail/index.vue
+++ b/jero-web/src/views/documentManage/library/docDetail/index.vue
@@ -12,8 +12,8 @@
                 v-html="titleHeader"></span>
             </template>
             <span v-html="$route.query.serial_number"></span>
-            <span
-              v-html="'《'+ this.$route.query.title == undefined || this.$route.query.title == null || !this.$route.query.title ? ''+'》': this.$route.query.title+'》'"></span>
+            <span v-html="this.$route.query.title == undefined || this.$route.query.title == null
+               || !this.$route.query.title ?'《'+ ''+'》':'《'+ this.$route.query.title+'》'"></span>
             <span> {{$t('StandardDetails')}}</span>
           </a-tooltip>