> node-sass@4.13.0 install D:\IDEAWorkSpace\casic-data_exchange_platform\node_modules\node-sass > no

错误代码： 

> node-sass@4.13.0 install D:\IDEAWorkSpace\casic-data_exchange_platform\node_modules\node-sass
> node scripts/install.js

Downloading binary from https://github.com/sass/node-sass/releases/download/v4.13.0/win32-x64-64_binding.node
Cannot download "https://github.com/sass/node-sass/releases/download/v4.13.0/win32-x64-64_binding.node":

ESOCKETTIMEDOUT

Hint: If github.com is not accessible in your location
      try setting a proxy via HTTP_PROXY, e.g.

      export HTTP_PROXY=http://example.com:1234

or configure npm proxy via

      npm config set proxy http://example.com:8080

> node-sass@4.13.0 postinstall D:\IDEAWorkSpace\casic-data_exchange_platform\node_modules\node-sass
> node scripts/build.js

Building: D:\nodejs\node.exe D:\IDEAWorkSpace\casic-data_exchange_platform\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsas
s_lib