add demo

src/layout/components/AppMain.vue

@@ -16,7 +16,7 @@ export default {
       return this.$store.state.tagsView.cachedViews
     },
     key() {
-      return this.$route.fullPath
+      return this.$route.path
     }
   }
 }

src/views/tab/index.vue

@@ -30,6 +30,11 @@ export default {
       createdTimes: 0
     }
   },
+  watch: {
+    activeName(val) {
+      this.$router.push(`${this.$route.path}?tab=${val}`)
+    }
+  },
   methods: {
     showCreatedTimes() {
       this.createdTimes = this.createdTimes + 1