1、在stateic下新增favicon.ico文件
2、修改index.html文件，如图
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<link rel="icon" type="image/x-icon" href="static/favicon.ico" rel="external nofollow" >
<title>网站名称</title>
</head>
<body>
<div id="app"></div>
<!-- built files will be auto injected -->
</body>
</html>
3、如果有新开页面无法显示图标问题，修改bulid下的webpack.dev.conf.js文件
new HtmlWebpackPlugin({
filename: 'index.html',
template: 'index.html',
inject: true,
favicon:'static/favicon.ico'//新增
}),
4、这个时候再重新启动一次项目就好啦
