去掉本地缓存 每次都拉取

src/views/layout/slidebar.vue

@@ -46,11 +46,7 @@ export default {
         vm = this
         const navs = sessionStorage.getItem('DISCUSS_CENTER_NAVS')
 
-        if (navs != null) {
-          vm.items = JSON.parse(navs)
-        } else {
-          vm.getNav()
-        }
+        vm.getNav()
     },
     methods: {
       getNav() {