javascript - npm install -g n error

Question

In order to update nodejs install the n module, but the following error is reported. Why is this?

C:\Windows\System32>npm i -g n
npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\node.exe" "C:\node_modules\npm\bin\npm-cli.js" "i" "-g"
n"
npm ERR! node v6.11.0
npm ERR! npm  v3.10.10
npm ERR! code EBADPLATFORM

npm ERR! notsup Unsupported platform for n@2.1.7: wanted {"os":"!win32","arch":
any"} (current: {"os":"win32","arch":"x64"})
npm ERR! notsup Valid OS:    !win32
npm ERR! notsup Valid Arch:  any
npm ERR! notsup Actual OS:   win32
npm ERR! notsup Actual Arch: x64

npm ERR! Please include the following file with any support request:
npm ERR!     C:\Windows\System32\npm-debug.log

Answer 1

You didn’t read the document carefully at first glance. The n module does not support Windows systems.
https://www.npmjs.com/package/n
Please read the content in brackets below the picture yourself.

Answer 2

npm -install xxx -g // "xxx" represents the module you want to install

Answer 3

nGenerally refers to the module you want to download, such as jquery