声明：纯属小白进门文档
vue的官方文档：
https://vuejs.bootcss.com/v2/guide/
第一步：引入vue.js
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
第二步：复制粘贴vue官方文档的实例后打开浏览器运行查看结果
完整html如下，可直接复制粘贴：
<!DOCTYPE html><html lang="en"><head> ???<meta charset="UTF-8"> ???<meta name="viewport" content="width=device-width, initial-scale=1.0"> ???<meta http-equiv="X-UA-Compatible" content="ie=edge"> ???<title>Document</title> ???<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script></head><body> ???<div id="app"> ???????{{ message }} ???</div> ???<script> ???????var app = new Vue({ ???????????el: ‘#app‘, ???????????data: { ???????????????message: ‘Hello Vue!‘ ???????????} ???????}) ???</script></body></html>element-ui（配合vue的一款非常优秀的ui框架）的官方文档，来展示效果
官方文档：http://element-cn.eleme.io/#/zh-CN/component/badge
第一步：引入
<!-- 引入样式 --> <link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">
<!-- 引入组件库 --> <script src="https://unpkg.com/element-ui/lib/index.js"></script>
第二步：
举个栗子：比如 Badge 标记 组件
<!DOCTYPE html><html lang="en"><head> ???<meta charset="UTF-8"> ???<meta name="viewport" content="width=device-width, initial-scale=1.0"> ???<meta http-equiv="X-UA-Compatible" content="ie=edge"> ???<title>Document</title> ???<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script> ???<!-- 引入样式 --> ???<link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css"> ???<!-- 引入组件库 --> ???<script src="https://unpkg.com/element-ui/lib/index.js"></script> ???<style> ???????.item { ???????????margin-top: 10px; ???????????margin-right: 40px; ???????} ???</style></head><body> ???<div id="app"> ???????<div> {{ message }}</div> ???????<div> ???????????<el-badge :value="12" class="item"> ???????????????<el-button size="small">评论</el-button> ???????????</el-badge> ???????????<el-badge :value="3" class="item"> ???????????????<el-button size="small">回复</el-button> ???????????</el-badge> ???????????<el-dropdown trigger="click"> ???????????????<span class="el-dropdown-link"> ???????????????????点我查看 ???????????????????<i class="el-icon-caret-bottom el-icon--right"></i> ???????????????</span> ???????????????<el-dropdown-menu slot="dropdown"> ???????????????????<el-dropdown-item class="clearfix"> ???????????????????????评论 ???????????????????????<el-badge class="mark" :value="12" /> ???????????????????</el-dropdown-item> ???????????????????<el-dropdown-item class="clearfix"> ???????????????????????回复 ???????????????????????<el-badge class="mark" :value="3" /> ???????????????????</el-dropdown-item> ???????????????</el-dropdown-menu> ???????????</el-dropdown> ???????</div> ???</div> ???<script> ???????var app = new Vue({ ???????????el: ‘#app‘, ???????????data: { ???????????????message: ‘Hello Vue!‘ ???????????} ???????}) ???</script></body></html>将vue和element-ui写在一个html里面方便调试（小白篇）
原文地址：https://www.cnblogs.com/DZzzz/p/9697292.html