下方截图是mac电脑，从左到右第十个图标是终端图标，第一步：点击终端，打开
第二步：输入
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.30.2/install.sh | bash
会加载下方代码，不报错：
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 7750 100 7750 0 0 11660 0 --:--:-- --:--:-- --:--:-- 11671
=> Downloading nvm from git to '/Users/zzk/.nvm'
=> Cloning into '/Users/zzk/.nvm'...
remote: Counting objects: 7039, done.
remote: Total 7039 (delta 0), reused 0 (delta 0), pack-reused 7039
Receiving objects: 100% (7039/7039), 2.14 MiB | 398.00 KiB/s, done.
Resolving deltas: 100% (4415/4415), done.
* (HEAD detached at v0.30.2)
master
=> Appending source string to /Users/zzk/.bashrc
=> Close and reopen your terminal to start using nvm
第三步：输入
cat ~/.bashrc
会加载下方代码，不报错：
PS1="\[\e[37;40m\][\[\e[32;40m\]\u\[\e[37;40m\]@\h\[\e[35;40m\]\W\[\e[0m\]]\\$ " alias ll='ls -l' export NVM_DIR="/Users/zzk/.nvm" [ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm [zzk@zzkdeMacBook-Proreact学习项目练习]$ echo 'export NVM_DIR="$HOME/.nvm" > [ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm' >> ~/.bashrc
第四步：输入
source ~/.bashrc
第五步：跟着第四部输入
nvm is
会加载下方代码，不报错：
Node Version Manager
Note: <version> refers to any version-like string nvm understands. This includes:
- full or partial version numbers, starting with an optional "v" (0.10, v0.1.2,v1)
- default (built-in) aliases: node, stable, unstable, iojs, system
- custom aliases you define with `nvm alias foo`
Usage:
nvm help Show this message
nvm --version Print out the latest released versionof nvm
nvm install [-s] <version> Download and install a <version>, [-s] from source. Uses .nvmrc if available
--reinstall-packages-from=<version> When installing, reinstall packages installed in <node|iojs|node version number>
nvm uninstall <version> Uninstall a version
nvm use [--silent] <version> Modify PATH to use <version>. Uses .nvmrc if available
nvm exec [--silent] <version> [<command>] Run <command> on <version>. Uses .nvmrc if available
nvm run [--silent] <version> [<args>] Run `node` on <version> with <args> as arguments. Uses .nvmrc if available
nvm current Display currently activated version
nvm ls List installed versions
nvm ls <version> List versions matching a given description
nvm ls-remote List remote versions available for install
nvm version <version> Resolve the given description to a single local version
nvm version-remote <version> Resolve the given description to a single remote version
nvm deactivate Undo effects of `nvm` on current shell
nvm alias [<pattern>] Show all aliases beginning with <pattern>
nvm alias <name> <version> Set an alias named <name> pointing to<version>
nvm unalias <name> Deletes the alias named <name>
nvm reinstall-packages <version> Reinstall global `npm` packages contained in <version> to current version
nvm unload Unload `nvm` from shell
nvm which [<version>] Display path to installed node version. Uses .nvmrc if available
Example:
nvm install v0.10.32 Install a specific version number
nvm use 0.10 Use the latest available 0.10.x release
nvm run 0.10.32 app.js Run app.js using node v0.10.32
nvm exec 0.10.32 node app.js Run `node app.js` with the PATH pointing to node v0.10.32
nvm alias default 0.10.32 Set default node version on a shell
Note:
to remove, delete, or uninstall nvm - just remove the `$NVM_DIR` folder (usually `~/.nvm`)
第六步：输入
nvm install stable
会加载下方代码，不报错：
Downloading https://nodejs.org/dist/v10.1.0/node-v10.1.0-darwin-x64.tar.xz... ## 3.2%^C Binary download failed, trying source. #### 5.8%^C Binary download failed, trying source. Detected that you have 4 CPU thread(s) Set the number of jobs to 4 - 1 = 3 jobs to speed up the build Installing node v1.0 and greater from source is not currently supported
第七步：输入
nvm install v8.9.4
会加载下方代码，不报错：
Downloading https://nodejs.org/dist/v8.9.4/node-v8.9.4-darwin-x64.tar.xz... ######################################################################## 100.0% WARNING: checksums are currently disabled for node.js v4.0 and later Now using node v8.9.4 (npm v5.6.0)
第八步：输入
node -v
就会出现版本号了！！！安装成功
v8.9.4