diff --git a/2019/12/vue-router.md b/2019/12/vue-router.md
index f038db1..82ccd78 100644
--- a/2019/12/vue-router.md
+++ b/2019/12/vue-router.md
@@ -299,3 +299,25 @@ export default {
 4.访问时 的路径 ： localhost:8080/#/父路由名/子组件名
 
 全部代码
+
+```
+const routes = [
+  { path: "/a/:id", component: aa },
+  {
+    path: "/b",
+    component: bb, 
+    // beforeEnter:(to,from,next)=>{
+    //   window.console.log(to,"aaassjlfml;")
+    //   next()
+    // },
+    
+    children: [
+      // {path:'/',component:bb},
+      {path:'c',component:c},
+      {path:'d',component:d},
+    ]
+  },
+
+]
+
+```