组件代码：
标签上加exact
.router-link-active{ background: rgba(255,255,255,0.8); color: gray; }
<template> <nav> <ul> <li> <router-link to="https://www.jb51.net/" exact>博客</router-link> <router-link to="/AddBlog" exact>写博客</router-link> </li> </ul> </nav> </template> <script> export default { name: "bolgheader" } </script> <style scoped> ul{ list-style-type: none; text-align: center; margin:0; } li{ display: inline-block; margin:0 10px; } a{ color:rgb(102, 119, 204); text-decoration: none; padding:12px; border-radius: 5px; font-size:20px; } nav{ background: #eee; padding: 30px 0; margin-bottom: 40px; } .router-link-active{ background: rgba(255,255,255,0.8); color: gray; } </style>