From: Martin Sharon <huangshuo.9@...>
Date: 2009-04-27T21:50:02+09:00
Subject: Re: How to parse a "line"?

:)I am really confused with ruby now.
OK, what I want to do is this, let me describe by c

input is one line: number city1 city2....city2

for(i=0;i<number;i++)
{
   function(cityi)
}


These ruby sentenses
h = {}

strs.each{|i|h[(v=i.split).shift]=v}

can split the city names, but can I loop h{}? how?

Thanks!

> Maybe we don't know exactly what it is you are trying to do.  strs
> was, in my example, supposed to be a large list separated by new
> lines, each containing something like...
> 
> number city city city ...
> 
> I just assumed that you wanted a list with an identifying marker,
> which would be most likely a Hash.
> 
> You can iterate over hashes, just like arrays, but the nomenclature
> can be different.
> 
> What do you have as data and what do you want to do with it?
> 
> Todd

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