From a1f88a58826b99ad93c15b36766aedec0d3ace81 Mon Sep 17 00:00:00 2001
From: asd <374367073@qq.com>
Date: Mon, 9 Dec 2019 11:04:31 +0800
Subject: [PATCH] update

---
 2019/12/vue-router.md | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/2019/12/vue-router.md b/2019/12/vue-router.md
index a06fb2d..d9a461e 100644
--- a/2019/12/vue-router.md
+++ b/2019/12/vue-router.md
@@ -251,9 +251,17 @@ const routes= [
 ```
 
 3.组件内的 导航守卫
+
 在组件内的 导出模块中声明
 beforeRouteEnter，beforeRouteUpdate，beforeRouteLeave
+参数都是 from,to,next
 
 beforeRouterEnter: 进入该组件的时候调用
+
 beforeRouteUPdate :路由改变呢重用组件的时候调用
-beforeRouteLeave ： 
\ No newline at end of file
+
+beforeRouteLeave ： 离开该组件的时候调用
+
+eg
+
+