set SASS_BINARY_SITE=https://npm.taobao.org/mirrors/node-sass/
npm install node-sass
修改.npmrc
sass_binary_site=https://npm.taobao.org/mirrors/node-sass/
phantomjs_cdnurl=https://npm.taobao.org/mirrors/phantomjs/
electron_mirror=https://npm.taobao.org/mirrors/electron/
registry=https://registry.npm.taobao.org
npm install -g cnpm; cnpm install
如果是Nexus则set SASS_BINARY_SITE=https://nexus/repository/npm/
