gem 安装
C:\Documents and Settings\xiaozuo>gem update --system
Updating rubygems-update
Fetching: rubygems-update-1.8.12.gem (100%)
Successfully installed rubygems-update-1.8.12
Installing RubyGems 1.8.12
RubyGems 1.8.12 installed
== 1.8.12 / 2011-12-02
* Bug fix:
* Handle more cases where Syck's DefaultKey showed up in requirements
and wasn't cleaned out.
-----------------------------------------------------------------------------
RubyGems installed the following executables:
C:/Ruby192/bin/gem
RubyGems system software updated
C:\Documents and Settings\xiaozuo>gem -v
1.8.12