diff --git a/2019/12/vue-router.md b/2019/12/vue-router.md
index 2fa93a8..b6d2e9f 100644
--- a/2019/12/vue-router.md
+++ b/2019/12/vue-router.md
@@ -23,6 +23,12 @@ yarn add vue-router
 1.在src/main.js中 定义 路径及映射的组件
 		
 ```
+const routes= [
+  { path: "/a", component: aa },
+  { path: "/b", component: bb },
 
+]
 
 ```
+
+2.实例化 VuRouter