From: James Gray <james@...>
Date: 2008-07-23T03:23:14+09:00
Subject: Re: fastercsv and several row

On Jul 22, 2008, at 1:09 PM, Li Chen wrote:

> Hi all,

Hello.

> I just try fastercsv and it works fine.

Great.

> I use the codes below to print out the first columns of the first ten
> rows. And it is OK.  Question1) Is this the Ruby way to do that?

It's definitely one possible way.  You could also use:

   FCSV.open('test.csv') do |csv|
     csv.each do |row|
       puts row.first
       break if csv.lineno >= 10
     end
   end

> Question 2)what if I want to print out the first columns of row   
> 20-30?

   FCSV.open('test.csv') do |csv|
     csv.each do |row|
       puts row.first if csv.lineno >= 20
       break if csv.lineno >= 30
     end
   end

Hope that gives you some fresh ideas.

James Edward Gray II