Hi --

On Sat, 24 Oct 2009, Haoqi Haoqi wrote:

> like this,thanks
> #!/usr/bin/env ruby
> class IO
>  def each_lines(n)
>    run=true
>    while run
>      lines=[]
>      n.times{
>         ln = self.gets
>         unless ln
>          run=false
>          break
>          else
>            lines<<ln.chomp
>        end
>      }
>      yield lines unless lines.empty?
>    end
>  end
> end
>
> open(__FILE__) do |f|
>   f.each_lines(3) do |lines|
>     p lines
>   end
> end

require 'enumerator'  # if necessary
open(__FILE__) do |f|
    f.each_slice(3) do |lines|
      p lines
    end
end

:-)


David

-- 
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David A. Black/Ruby Power and Light, LLC (http://www.rubypal.com)