1.安装Ruby
Windows下使用RubyInstaller安装Ruby，下载地址:
根据需要下载合适的版本（64位或32位），rubyinstaller-2.2.2-x64.exe
下载完成后直接点击安装，安装完成后打开控制台，输入以下命令：
C:\Users\User>ruby -vruby 2.2.2p95 (2015-04-13 revision 50295) [x64-mingw32]C:\Users\User>gem -v2.4.5
如果输入命令后显示类似上面的结果，就说明Ruby安装成功了，gem用于管理（安装或删除）Ruby软件包
2.国内网络环境重新配置RubyGems源地址，方法如下：
C:\Users\User>gem sources --remove https://rubygems.org/https://rubygems.org/ removed from sourcesC:\Users\User>gem sources -a http://ruby.taobao.org/source http://ruby.taobao.org/ already present in the cacheC:\Users\User>gem sources -l*** CURRENT SOURCES ***http://ruby.taobao.org/
3.安装Sass & Cpmpass
C:\Users\User>gem install sassFetching: sass-3.4.14.gem (100%)Successfully installed sass-3.4.14Parsing documentation for sass-3.4.14Installing ri documentation for sass-3.4.14Done installing documentation for sass after 10 seconds1 gem installed
C:\Users\User>gem install compass-core compass-import-once compassFetching: multi_json-1.11.0.gem (100%)Successfully installed multi_json-1.11.0Fetching: compass-core-1.0.3.gem (100%)Successfully installed compass-core-1.0.3Parsing documentation for multi_json-1.11.0Installing ri documentation for multi_json-1.11.0Parsing documentation for compass-core-1.0.3Installing ri documentation for compass-core-1.0.3Done installing documentation for multi_json, compass-core after 4 secondsFetching: compass-import-once-1.0.5.gem (100%)Successfully installed compass-import-once-1.0.5Parsing documentation for compass-import-once-1.0.5Installing ri documentation for compass-import-once-1.0.5Done installing documentation for compass-import-once after 0 secondsFetching: chunky_png-1.3.4.gem (100%)Successfully installed chunky_png-1.3.4Fetching: rb-fsevent-0.9.5.gem (100%)Successfully installed rb-fsevent-0.9.5Fetching: ffi-1.9.8-x64-mingw32.gem (100%)Successfully installed ffi-1.9.8-x64-mingw32Fetching: rb-inotify-0.9.5.gem (100%)Successfully installed rb-inotify-0.9.5Fetching: compass-1.0.3.gem (100%) Compass is charityware. If you love it, please donate on our behalf at http://umdf.org/compass Thanks!Successfully installed compass-1.0.3Parsing documentation for chunky_png-1.3.4Installing ri documentation for chunky_png-1.3.4Parsing documentation for rb-fsevent-0.9.5Installing ri documentation for rb-fsevent-0.9.5Parsing documentation for ffi-1.9.8-x64-mingw32Installing ri documentation for ffi-1.9.8-x64-mingw32Parsing documentation for rb-inotify-0.9.5Installing ri documentation for rb-inotify-0.9.5Parsing documentation for compass-1.0.3Installing ri documentation for compass-1.0.3Done installing documentation for chunky_png, rb-fsevent, ffi, rb-inotify, compass after 6 seconds8 gems installed