访问Nodist主页，下载安装包，安装好软件。注：如果电脑之前安装了Node，安装Nodist之前需要卸载掉Node；
淘宝镜像地址：
查看所有可用的node版本地址
查看所有可用的npm版本地址
查看所有可用的iojs版本地址
更换淘宝镜像，加速node下载。
1、添加环境变量：
NODIST_NODE_MIRROR 值：https://npm.taobao.org/mirrors/node
NODIST_IOJS_MIRROR 值：https://npm.taobao.org/mirrors/iojs
2、npm加速。打开命令行窗口，输入命令：
npm config set registry https://registry.npm.taobao.org
3、常用命令：
nodist //查看当前安装了的node版本列表
nodist 4.4.6 //设置全局node的版本，如果该版本不存在，会先下载
nodist + 4.4.6 //检查该版本有没有安装，如果没有，会进行下载
nodist -4.4.6 //移除某个版本
nodist npm list // 查看所有已安装的npm版本
nodist npm match // 切换到匹配当前node版本的npm版本（没有则下载）
nodist npm 3.10.5 // 安装npm 3.10.5版本
使用说明
Usage:
nodist List all installed node versions.
nodist list
nodist ls
nodist dist List all available node versions.
nodist ds
nodist add <version> Download the specified node version.
nodist + <version>
nodist rm <version> Uninstall the specified node version.
nodist - <version>
nodist <version> Use the specified node version globally
nodist global <version> (downloads the executable, if necessary).
nodist local <version> Use <version> in this directory and its subdirectories.
(will add a ./node-version file)
nodist use <version> Use <version> in the current environment only
nodist env <version> (usually the current terminal window).
nodist run <version> -- <args..> Run <args> with the specified node version
nodist r <version> -- <args..> (downloads the executable, if necessary).
nodist bin <version> Get the path to the specified node executable
(downloads the executable, if necessary).
nodist path <version> Get the path to the specified node version directory
(downloads the executable, if necessary).
nodist npm <version> Activate the specified npm version
(downloads it if necessary)
nodist npm match Activate the npm version matching the active
node version.
nodist --help Display this help
nodist -v Display nodist version
Examples:
nodist 0.8.1 Use node v0.8.1 globally
nodist v0.5.10 Use node v0.5.10 globally
nodist - 0.5.10 Uninstall node v0.5.10
nodist r v0.8.1 -- foo.js -s Run `foo.js -s` with node v0.8.1, regardless
of the global version
nodist latest Use the latest available node version globally
(downloads the executable, if necessary).
nodist + all Installs *all* available node versions.
(Get yourself a cuppa in the meantime...)
Env vars:
NODIST_X64 Will always use the 64bit versions if set to '1'
HTTP_PROXY Will use the Url and port specified as a proxy
(e.g. http://myproxy.com:8213 )
NODIST_NODE_MIRROR Set an alternative URL to fetch the node executables
from (e.g. http://mymirror.com/dist)
NODIST_IOJS_MIRROR Set an alternative URL to fetch io.js exectuables
from.