终于可以贡献一点什么了： 大家可是试试看：
gem install number_to_cn
irb$ require 'number_to_cn'
12345.to_cn_words #=> 壹萬贰仟叁佰肆拾伍
我觉得很有用。
@calebx 1.9.3p194 :003 > 0976.to_cn_words SyntaxError: (irb):3: Invalid octal digit 0976.to_cn_words ^ from /Users/cloudunion/.rvm/rubies/ruby-1.9.3-p194/bin/irb:16:in `'
@calebx 1.9.3p194 :004 > 999.99.to_cn_words
NoMethodError: undefined method to_cn_words' for 999.99:Float
from (irb):4
from /Users/cloudunion/.rvm/rubies/ruby-1.9.3-p194/bin/irb:16:in'
