安装node.js

cmd内输入npm i less -g

编译less.less

cmd里内输入 lessc less.less css.css

webstorm

npm install -g less出现以下错误，npm config set proxy null也没有用怎么破

npm ERR! Error: connect ECONNREFUSED
npm ERR! 

   at errnoException (net.js:878:11)
npm ERR!    at Object.afterConnect [as oncomplete] (net.js:869:19)
npm ERR! { [Error: connect ECONNREFUSED]
npm ERR!  code: 'ECONNREFUSED',
npm ERR!  errno: 'ECONNREFUSED',
npm ERR!  syscall: 'connect' }
npm ERR!
npm ERR! If you are behind a proxy, please make sure that the
npm ERR! 'proxy' config is set properly. See: 'npm help config'

为啥还要用Dreamweaver呢？

改为 sudo npm install -g yo 试一下