windows下引入axios碰到的怪问题 今天安装axios到vuejs下面，出现了一个奇怪的问题，记录下备忘！
D:\wamp64\www\tools\first-vue>npm install axios --save
npm ERR! path D:\wamp64\www\tools\first-vue\node_modules\fsevents\node_modules\dashdash\node_modules
npm ERR! code EPERM
npm ERR! errno -4048
npm ERR! syscall scandir
npm ERR! Error: EPERM: operation not permitted, scandir 'D:\wamp64\www\tools\first-vue\node_modules\fsevents\node_modules\dashdash\node_modules'
npm ERR! { Error: EPERM: operation not permitted, scandir 'D:\wamp64\www\tools\first-vue\node_modules\fsevents\node_modules\dashdash\node_modules'
npm ERR! stack: 'Error: EPERM: operation not permitted, scandir \'D:\wamp64\www\tools\first-vue\node_modules\fsevents\node_modules\dashdash\node_modules\'',
npm ERR! errno: -4048,
npm ERR! code: 'EPERM',
npm ERR! syscall: 'scandir',
npm ERR! path: 'D:\wamp64\www\tools\first-vue\node_modules\fsevents\node_modules\dashdash\node_modules' }
npm ERR!
npm ERR! Please try running this command again as root/Administrator.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Administrator\AppData\Roaming\npm-cache_logs\2017-11-12T072809_076Z-debug.log
不知道什么原因，关闭所有first-vue目录下面相关的程序，再来
D:\wamp64\www\tools\first-vue>npm install axios --save
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.1.3 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
- axios@0.17.1
added 115 packages and updated 1 package in 15.923s
D:\wamp64\www\tools\first-vue>
成功！真奇怪了。。。
