diff --git a/2019/12/vue-router.md b/2019/12/vue-router.md
index 22a0f6a..42c6dd0 100644
--- a/2019/12/vue-router.md
+++ b/2019/12/vue-router.md
@@ -222,16 +222,22 @@ from 当前正要离开的页面信息
 next  进行管道中的下一个钩子  
 如果是 next(false), 中断当前的导航
 
-2.路由独享的 导航守卫，也可以声明 
+2.路由独享的 导航守卫
 
 在main.js中的 routes 路由定义：
+
+```
 const routes= [
   { path: "/a", component: aa },
   { path: "/b", component: bb },
 
 ]
 
+```
+
 把 { path: "/a", component: aa },改成：
+
+```
  {
     path: "/b",
     component: bb, 
@@ -239,8 +245,8 @@ const routes= [
       window.console.log("aaassjlfml;")
       next()
     }
-    // beforeEnter: (to, from, next) => {
-    //   window.console.log("bedo"),
-    //   next()
-    // }
-  },
\ No newline at end of file
+
+  },
+
+```
+