https://github.com/Pana/nrm

https://www.npmjs.com/package/nrm

2. 关于nrm 

nrm can help you easy and fast switch between different npm registries, now include: npm, cnpm, taobao, nj(nodejitsu).

nrm可以帮助您在不同的 npm 注册表之间轻松快速地切换，现在包括：npm, cnpm, taobao, nj(nodejitsu).

nrm(NPM registry manager) 是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

How to configure yarn to use private registry ?
just add .yarnrc in your project’s directory and write there: registry “http://your.registry”

Or you can configure it in your HOME directory’s .yarnrc

如何配置yarn使用私有注册表？
只需在项目目录中添加 .yarnrc 并在其中写入： registry “http://your.registry”

或者您可以在 HOME 目录的 .yarnrc 中配置

2. 安装

 npm install -g nrm

2. 用法

F:\yuanWebStormProjects\yuan-vue>nrm -help
Usage: cli [options] [command]

Options:
  -V, --version                           output the version number
  -h, --help                              output usage information

Commands:
  ls                                      List all the registries
  current [options]                       Show current registry name or URL
  use <registry>                          Change registry to registry
  add <registry> <url> [home]             Add one custom registry
  login [options] <registryName> [value]  Set authorize information for a custom registry with a base64 encoded string or username and pasword
  set-hosted-repo <registry> <value>      Set hosted npm repository for a custom registry to publish packages
  set-scope <scopeName> <value>           Associating a scope with a registry
  del-scope <scopeName>                   Remove a scope
  set [options] <registryName>            Set custom registry attribute
  rename <registryName> <newName>         Set custom registry name
  del <registry>                          Delete one custom registry
  home <registry> [browser]               Open the homepage of registry with optional browser
  publish [options] [<tarball>|<folder>]  Publish package to current registry if current registry is a custom registry.
   if you're not using custom registry, this command will run npm publish directly
  test [registry]                         Show response time for specific or all registries
  help                                    Print this help
   if you want to clear the NRM configuration when uninstall you can execute "npm uninstall nrm -g -C or npm uninstall nrm -g --clean"

 2.1. 查看

F:\yuanWebStormProjects\yuan-vue>nrm ls
  npm ---------- https://registry.npmjs.org/
  yarn --------- https://registry.yarnpkg.com/
  tencent ------ https://mirrors.cloud.tencent.com/npm/
  cnpm --------- https://r.cnpmjs.org/
  taobao ------- https://registry.npmmirror.com/
  npmMirror ---- https://skimdb.npmjs.com/registry/

2.2. 切换

F:\yuanWebStormProjects\yuan-vue>nrm use taobao

   Registry has been set to: https://registry.npmmirror.com/

2.3. 新增

add <registry> <url> [home]  
F:\yuanWebStormProjects\yuan-vue>nrm add yuan http://192.168.31.25:8081/repository/yuannode/

    add registry yuan success

2.4. 删除

F:\yuanWebStormProjects\yuan-vue>nrm del yuan

   delete registry yuan success