整个教程是基于ruby的 windows 发行版。Ruby 作为跨平台的脚本语言，几乎在所有的平台上都有相应的实现，很多 linux 发行版本都带有了 ruby安装文件，而 windows 平台则需要从 www.rubyforge.net上下载一个 one-click installer 安装程序。 由于 ruby one-click installer 带有了 rubygems package manager包，所以就省去了我们很多麻烦。我们只需要一条命令就可以从网上下载 rails 了（当然安装 rails 你需要保证你的机器连上 internet ）。-The whole tutorial is based on the ruby for windows release. Ruby as a cross-platform scr ipting language, in almost all of the platforms have a corresponding implementation, many linux distributions come with a ruby installation files, while the windows platform, you need to download from the www.rubyforge.net a one-click installer Setup. As the ruby one-click installer package with the rubygems package manager, so it saved us a lot of trouble. We need only one command can be downloaded from the Internet rails of the (of course you need to install the rails to ensure your machine connected to the internet).