使用NVM管理Node

安装 NVM

　　NVM 下载：https://github.com/coreybutler/nvm-windows

安装 Node

注意：如果没有FQ默认源可能安装npm失败，请参考下一节“安装 NPM”修改镜像源地址。

• 查看可用版本：

  nvm ls available

• 安装Node：
  

  nvm install [version]

• 指定使用版本：

  nvm use [version]

安装 NPM

　　nvm全称Node Version Manager是 Nodejs 版本管理器，它让我们能方便的对 Nodejs 的版本进行切换。

　　使用默认源可能安装npm失败，需要修改../nvm/settings.txt文件，添加如下配置。

  root: C:dev
vm 
  path: C:dev
odejs 
  arch: 64 
  proxy: none 
  node_mirror: http://npm.taobao.org/mirrors/node/
  npm_mirror: https://npm.taobao.org/mirrors/npm/

安装NRM

　　nrm(npm registry manager)是npm的镜像源管理工具，有时候国外资源太慢，那么我们可以用这个来切换镜像源。

• 安装nrm

  npm install nrm -g

• 查看可用镜像源

  nvm>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/

• 选择使用镜像源

  nrm use taobao

NVM 命令

Usage:

  nvm arch                     : Show if node is running in 32 or 64 bit mode.
  nvm install <version> [arch] : The version can be a node.js version or "latest" for the latest stable version.
                                 Optionally specify whether to install the 32 or 64 bit version (defaults to system arch).
                                 Set [arch] to "all" to install 32 AND 64 bit versions.
                                 Add --insecure to the end of this command to bypass SSL validation of the remote download server.
  nvm list [available]         : List the node.js installations. Type "available" at the end to see what can be installed. Aliased as ls.
  nvm on                       : Enable node.js version management.
  nvm off                      : Disable node.js version management.
  nvm proxy [url]              : Set a proxy to use for downloads. Leave [url] blank to see the current proxy.
                                 Set [url] to "none" to remove the proxy.
  nvm node_mirror [url]        : Set the node mirror. Defaults to https://nodejs.org/dist/. Leave [url] blank to use default url.
  nvm npm_mirror [url]         : Set the npm mirror. Defaults to https://github.com/npm/npm/archive/. Leave [url] blank to default url.
  nvm uninstall <version>      : The version must be a specific version.
  nvm use [version] [arch]     : Switch to use the specified version. Optionally specify 32/64bit architecture.
                                 nvm use <arch> will continue using the selected version, but switch to 32/64 bit mode.
  nvm root [path]              : Set the directory where nvm should store different versions of node.js.
                                 If <path> is not set, the current root will be displayed.
  nvm version                  : Displays the current running version of nvm for Windows. Aliased as v.

参考链接

https://www.runoob.com/w3cnote/nvm-manager-node-versions.html

https://blog.csdn.net/qq_27626333/article/details/77857223