官网 https://nodejs.org/en/ 国内镜像 https://pan.baidu.com/s/1kU5OCOB#list/path=%2Fpub%2Fnodejs 视频教程 http://www.liaoxuefeng.com/wiki/001434446689867b27157e896e74d51a89c25cc8b43bdb3000/00143450141843488beddae2a1044cab5acb5125baf0882000 node -v npm -v noe