vue cli 安装element-ui

1、安装elment-ui

--save 参数：上线打包

MacBookPro:vue_test zhangxm$ npm install element-ui axios --save
npm WARN deprecated core-js@2.6.11: core-js@<3 is no longer maintained and not recommended for usage due to the number of issues. Please, upgrade your dependencies to the actual version of core-js@3.

> core-js@2.6.11 postinstall /Users/zhangxm/codes/vue/vue_test/node_modules/babel-runtime/node_modules/core-js
> node -e "try{require('./postinstall')}catch(e){}"

Thank you for using core-js ( https://github.com/zloirock/core-js ) for polyfilling JavaScript standard library!

The project needs your help! Please consider supporting of core-js on Open Collective or Patreon:
> https://opencollective.com/core-js
> https://www.patreon.com/zloirock 

Also, the author of core-js ( https://github.com/zloirock ) is looking for a good job -)

+ axios@0.19.0
+ element-ui@2.13.0
added 14 packages from 16 contributors in 15.917s

33 packages are looking for funding