win8安装ruby,rails

ruby安装：

http://rubyinstaller.org/

ruby：http://dl.bintray.com/oneclick/rubyinstaller/rubyinstaller-2.0.0-p247-x64.exe?direct

双击安装

文档：http://dl.bintray.com/oneclick/rubyinstaller/ruby-2.0.0-p247-doc-chm.7z?direct

解压缩即可

开发包：http://rubyforge.org/frs/download.php/76808/DevKit-mingw64-64-4.7.2-20130224-1432-sfx.exe

双击安装解压缩到一个目录，然后把bin目录加到环境变量PATH中

开发包安装看这个：https://github.com/oneclick/rubyinstaller/wiki/Development-Kit

在开发包目录执行两个命令：run “ruby dk.rb init” and “ruby dk.rb install”

安装gems:

看淘宝镜像：http://ruby.taobao.org/

执行命令：

$ gem sources --remove https://rubygems.org/ 

$ gem sources -a http://ruby.taobao.org/ 

$ gem sources -l
*** CURRENT SOURCES ***

http://ruby.taobao.org # 请确保只有 ruby.taobao.org 

$ gem install rails

如果前面没有安装 DevKit，执行

gem install rails

会报错

D:\rubydevkit>gem install rails
ERROR:  Error installing rails:
        The 'atomic' native gem requires installed build tools.


Please update your PATH to include build tools or download the DevKit
from 'http://rubyinstaller.org/downloads' and follow the instructions
at 'http://github.com/oneclick/rubyinstaller/wiki/Development-Kit'

安装一下就可以了。

gem install rails命令执行成功后，输入rails会出现提示信息，说明安装成功。