Sass

1.安装sass
a)安装ruby
b)gem sources --remove https://rubygems.org/
c)gem sources -a https://gems.ruby-china.com
d)gem install sass
e)gem install compass
f)gem update sass
2.ruby编译scss出现invalid GBK错误
解决办法
在ruby的安装目录下找到engine.rb文件，目录格式如D:\ruby\Ruby21\lib\ruby\gems\2.1.0\gems\sass-3.4.15\lib\sass在文件中添加一行Encoding.default_external = Encoding.find('utf-8')