修改

src/views/system/banner/detail.vue

@@ -98,7 +98,11 @@ export default {
       window.history.go('-1');
     },
   },
-  computed: {},
+  computed: {
+    id() {
+      return this.$route.query.id;
+    },
+  },
   metaInfo() {
     return { title: this.$route.meta.title };
   },

src/views/system/banner/index.vue

@@ -104,7 +104,7 @@ export default {
     },
     // 修改
     async toEdit({ data }) {
-      this.$router.push({ path: '/system/banner/detail', query: { id: data._id } });
+      this.$router.push({ path: '/system/banner/detail', query: { id: data.id } });
     },
     async toDel({ data }) {
       let res = await this.delete(data._id);