改动isAuthenticated设定逻辑，使得多标签可以共享登录状态

src/routes/router.js

@@ -9,11 +9,10 @@ import DashboardDesigner from '../components/dashboardDesigner/layout'
 // 由于 antd 组件的默认文案是英文，所以需要修改为中文
 import zhCN from 'antd/lib/locale-provider/zh_CN'
 import Demo from '../demo';
-import Login from '../components/common/login';
-
-window.localStorage.setItem("isAuthenticated", "false");
-
 
+if (!window.localStorage.getItem("isAuthenticated")) {
+    window.localStorage.setItem("isAuthenticated", "false");
+}
 
 
 const PrivateRoute = ({ component: Component, ...rest }) => (