From: Zhenning Guan <g.zhen.ning@...>
Date: 2008-11-05T21:51:13+09:00
Subject: what's wrong about this chomp code?

when I was running this code
------------
File.open("1c.txt") do |f|
  while line= f.gets.chomp;
   p line ;
  end
end
-------------

why they warning with the message below?

=========
private method 'chomp' called for nil:NilClass <nomethoderror>
from ok.rb:2:in 'open'
from ok.rb:2
==========
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