cucumber安装步骤

#Start Guide
##Environment
###1. Install Ruby
Verify your installation by running ruby -v in a terminal - it should print "ruby 1.9.3" (or higher).

###2. Install Devkit
You can get Ruby and DevKit from [RubyInstaller.org](http://rubyinstaller.org/)

###3. Enter Devkit directory
ruby dk.rb init
ruby dk.rb install

###4. if you use Chrome,please install chrome driver
if you use IE,please install Internet explorer driver

Optional: Install ansicon

###5. gem sources
gem sources -a http://gems.ruby-china.org   or  gem sources -a https://rubygems.org/      (US)

Remove sources: gem sources -r  URL

Clear cache and update: gem sources -u

###6. Enter selenium-cucumber-ruby-mast directory
gem install appium_lib

###7.gem install selenium-cucumber

         gem install cucumber
         gem install rspec
          ....