安装node 代码监控模块

nodemon 代码一旦变动，就会自动重启

C:\Users>npm install nodemon -g
C:\Users\AppData\Roaming\npm\nodemon -> C:\Users\AppData\Roaming\npm\node_modules\nodemon\bin\nodemon.js

> nodemon@2.0.7 postinstall 
C:\Users\AppData\Roaming\npm\node_modules\nodemon
> node bin/postinstall || exit 0

Love nodemon? You can now support the project via the open collective:
 > https://opencollective.com/nodemon/donate

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.3.2 (node_modules\nodemon\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.3.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

+ nodemon@2.0.7
added 119 packages from 53 contributors in 10.567s


   ╭───────────────────────────────────────────────────────────────╮
   │                                                               │
   │      New major version of npm available! 6.14.4 -> 7.5.2      │
   │   Changelog: https://github.com/npm/cli/releases/tag/v7.5.2   │
   │               Run npm install -g npm to update!               │
   │                                                               │
   ╰───────────────────────────────────────────────────────────────╯

也可是指定使用 淘宝的源进行安装：

npm install nodemon -g  --registy=http://registry.npm.taobao.org