vue项目引入 vant组件库

1、安装依赖
npm i vant@latest-v2 -S
npm i babel-plugin-import -D
2、在.babelrec文件中添加按需引入配置

{
"plugins":[
["import",{
"libraryName":"vant",
"libraryDirectory":"es",
"style":true
}]
]
}

3、按需引入（main.js）
import { Button } from 'vant';
Vue.use(Button);

4、在页面中正常使用
<van-button type="primary">主要按钮</van-button>
<van-button type="info">信息按钮</van-button>
<van-button type="default">默认按钮</van-button>
<van-button type="warning">警告按钮</van-button>
<van-button type="danger">危险按钮</van-button>