在Windows下安装hexo始终失败，已经将npm调整到国内源。

 $ npm install -g hexo-cli
npm WARN optional dep failed, continuing fsevents@^1.0.0
C:\Users\Chang\AppData\Roaming\npm\hexo -> C:\Users\---\AppData\Roaming\npm\no
de_modules\hexo-cli\bin\hexo
npm ERR! Windows_NT 6.3.9600
npm ERR! argv "c:\\Program Files\\nodejs\\node.exe" "c:\\Program Files\\nodejs\\
node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "hexo-cli"
npm ERR! node v4.1.2
npm ERR! npm  v2.14.4
npm ERR! code EIO
npm ERR! errno EIO
npm ERR! syscall write

npm ERR! write EIO