Ruby中文排序
2014-09-10安装iconv，这是个负责在字符集间进行转换的函数库。如果要使用它，还需要在controller中加上 require 'iconv'
实现：
conv = Iconv.new("GBK", "utf-8")
ordername from provinces order by ordername desc")
@test1 = Province.find(:all).sort {|x, y| conv.iconv(x.prov_name) <=> conv.iconv(y.prov_name)}