nrm

• npm的镜像源管理工具，有时候国外资源太慢，使用这个就可以快速地在 npm 源间切换

1.安装

cnpm install -g nrm

2.查看地址

nrm ls

* npm -------- https://registry.npmjs.org/
  yarn ------- https://registry.yarnpkg.com/
  cnpm ------- http://r.cnpmjs.org/
  taobao ----- https://registry.npm.taobao.org/
  nj --------- https://registry.nodejitsu.com/
  npmMirror -- https://skimdb.npmjs.com/registry/
  edunpm ----- http://registry.enpmjs.org/
*

3.切换

nrm use taobao 

4.增加

nrm add 

5.删除

nrm del

6.测试速度

nrm test npm
//npm ---- 2125ms