npm config set registry https://registry.npm.taobao.org
npm install --registry=https://registry.npm.taobao.org
npm install [email protected] --ignore-scripts
npm uninstall --save node-sass
npm install --save node-sass
cnpm uninstall --save node-sass
cnpm install --save node-sass
node-sass -v
npm install node-sass -g
cnpm install --save-dev node-sass
下载地址：http://npm.taobao.org/dist/phantomjs/