mac下用ruby安装sass && webstorm下给scss文件添加watch

1.安装rvm

先安装 [Xcode](http://developer.apple.com/xcode/) 开发工具，它将帮你安装好 Unix 环境须要的开发包

sudo curl -L https://get.rvm.io | bash -s stable

sudo source ~/.rvm/scripts/rvm

rvm -v

 

2.用rvm安装ruby

sudo rvm install ruby-2.0.0-p648

gem -v

gem source -r https://rubygems.org/

gem source -a https://ruby.taobao.org

gem sources -l

sudo gem install sass

 3.webstorm下给scss文件添加watch

(1)查看sass的安装路径

which sass

（2）设置webstorm

(3)新建一个scss文件，能够看到对应生成了css