NRM是什么
NRM (npm registry manager )是npm的镜像源管理工具，提供了常用的镜像源地址，可以选择对应的镜像源进行切换。
安装
npm i -g nrm
或
yarn global add nrm
安装nrm
查看镜像源
nrm ls
提示：镜像前带*的为当前选中的镜像源
查看镜像源
选择镜像源
nrm use yarn
选择镜像源
可通过nrm ls或nrm current命令查看镜像源切换情况
nrm用法
Usage: nrm [options] [command]
Commands:
ls List all the registries
current Show current registry name
use <registry> Change registry to registry
add <registry> <url> [home] Add one custom registry
set-auth <registry> [value] Set authorize information for a custom registry with a base64 encoded string or username and pasword
-a --always-auth Set is always auth
-u --username <username> Your user name for this registry
-p --password <password> Your password for this registry
set-email <registry> <value> Set email for a custom registry
set-hosted-repo <registry> <value> Set hosted npm repository for a custom registry to publish packages
del <registry> Delete one custom registry
home <registry> [browser] Open the homepage of registry with optional browser
test [registry] Show the response time for one or all registries
publish [<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
-t --tag [tag] Add tag
-a --access <public|restricted> Set access
-o --otp [otpcode] Set otpcode
-dr --dry-run Set is dry run
help Print this help
Options:
-h, --help output usage information
-V, --version output the version number
