1. 安裝NodeJS
到官網(wǎng)下載安裝
2. 使用Node命令
安裝完成后，查看NodeJS的版本：
node -v
npm -v
3. 安裝nrm
nrm是一個管理 npm 源的工具颈娜，用來切換官方 npm 源和國內(nèi)的 npm 源（如:cnpm）口锭，當(dāng)然也可以用來切換官方 npm 源和公司私有 npm 源
全局安裝nrm
npm i nrm -g
查看當(dāng)前nrm內(nèi)置的幾個npm源地址：
C:\Users\zhangyanming > nrm ls
npm ---- https://registry.npmjs.org/
cnpm --- http://r.cnpmjs.org/
* taobao - https://registry.npm.taobao.org/
nj ----- https://registry.nodejitsu.com/
rednpm - http://registry.mirror.cqupt.edu.cn/
npmMirror? https://skimdb.npmjs.com/registry/
edunpm - http://registry.enpmjs.org/
切換到cnpm
C:\Users\zhangyanming > nrm use cnpm
verb config Skipping project config: C:\Users\zhangyanming/.npmrc. (matches userconfig)
Registry has been set to: http://r.cnpmjs.org/
C:\Users\zhangyanming > nrm ls
npm ---- https://registry.npmjs.org/
* cnpm --- http://r.cnpmjs.org/
taobao - https://registry.npm.taobao.org/
nj ----- https://registry.nodejitsu.com/
rednpm - http://registry.mirror.cqupt.edu.cn/
npmMirror? https://skimdb.npmjs.com/registry/
edunpm - http://registry.enpmjs.org/
