blocks|key|436332|text|您可以通过调用hash.values直接访问哈希值。在这种情况下，您可以这样做|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|436333|>+h+=+{"67676.mpa"=>{:link=>"pool/sdafdsaff",+:size=>4556}}
>+h.values.each+do+%7Ckey,+value%7C
>+++puts+"#{key}+#{value}"
>+end

link+pool/sdafsaff
size+4556|code-block|syntax|javascript|436334|entityMap^0|7|B|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

You can access the values of a hash directly by calling <code>hash.values</code>. In this case you could do something like

<pre><code>&gt; h = {"67676.mpa"=&gt;{:link=&gt;"pool/sdafdsaff", :size=&gt;4556}}
&gt; h.values.each do |key, value|
&gt; puts "#{key} #{value}"
&gt; end

link pool/sdafsaff
size 4556
</code></pre>

blocks|key|436374|text|Value是一个Hash+to，所以你需要对它进行迭代，或者你只能获得值：-|type|unstyled|depth|inlineStyleRanges|entityRanges|data|436375|h.each+do+%7Ckey,+value%7C
++puts+key
++value.each+do+%7Ck,v%7C
++++puts+k
++++puts+v
++end
end|code-block|syntax|javascript|436376|​|436377|或|436378|436379|h.each+do+%7Ckey,+value%7C
++puts+key
++value.values.each+do+%7Cv%7C
++++puts+v
++end
end|436380|436381|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|L|3|M|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|N|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|P|$]]

blocks|key|436435|text|你会想要递归遍历散列，下面是一个递归方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|436436|def+ihash(h)
++h.each_pair+do+%7Ck,v%7C
++++if+v.is_a?(Hash)
++++++puts+"key:+#{k}+recursing..."
++++++ihash(v)
++++else
++++++#+MODIFY+HERE!+Look+for+what+you+want+to+find+in+the+hash+here
++++++puts+"key:+#{k}+value:+#{v}"
++++end
++end
end|code-block|syntax|javascript|436437|然后，您可以获取任何散列并将其传递给：|436438|h+=+{
++++"x"+=>+"a",
++++"y"+=>+{
++++++++"y1"+=>+{
++++++++++++"y2"+=>+"final"
++++++++},
++++++++"yy1"+=>+"hello"
++++}
}
ihash(h)|436439|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You'll want to recurse through the hash, here's a recursive method:

<pre><code>def ihash(h)
 h.each_pair do |k,v|
 if v.is_a?(Hash)
 puts "key: #{k} recursing..."
 ihash(v)
 else
 # MODIFY HERE! Look for what you want to find in the hash here
 puts "key: #{k} value: #{v}"
 end
 end
end
</code></pre>

You can Then take any hash and pass it in: 

<pre><code>h = {
 "x" =&gt; "a",
 "y" =&gt; {
 "y1" =&gt; {
 "y2" =&gt; "final"
 },
 "yy1" =&gt; "hello"
 }
}
ihash(h)
</code></pre>

blocks|key|436475|text|在这种情况下，分离所有三个值的最简单方法如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|436476|h.each+do+%7Ckey,+value%7C
++puts+key
++puts+value[:link]
++puts+value[:size]
end|code-block|syntax|javascript|436477|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The simplest way to separate out all three values in this case would be as follows: 

<pre><code>h.each do |key, value|
 puts key
 puts value[:link]
 puts value[:size]
end
</code></pre>

blocks|key|436523|text|我稍微改进了Travis的回答，这个要点怎么样：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|436524|https://gist.github.com/kjakub/be17d9439359d14e6f86|offset|length|436525|class+Hash

++def+nested_each_pair
++++self.each_pair+do+%7Ck,v%7C
++++++if+v.is_a?(Hash)
++++++++v.nested_each_pair+{%7Ck,v%7C+yield+k,v}
++++++else
++++++++yield(k,v)
++++++end
++++end
++end

end

{"root"=>{:a=>"tom",+:b=>{:c+=>+1,+:x+=>+2}}}.nested_each_pair{%7Ck,v%7C
++puts+k
++puts+v
}|code-block|syntax|javascript|436526|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|1F|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@$D|T|E|U|1|V]]|A|$]]|$1|F|3|G|5|H|7|W|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|C]]]]

I little improved Travis's answer, how about this gist:

<a href="https://gist.github.com/kjakub/be17d9439359d14e6f86" rel="noreferrer">https://gist.github.com/kjakub/be17d9439359d14e6f86</a>

<pre><code>class Hash

 def nested_each_pair
 self.each_pair do |k,v|
 if v.is_a?(Hash)
 v.nested_each_pair {|k,v| yield k,v}
 else
 yield(k,v)
 end
 end
 end

end

{"root"=&gt;{:a=&gt;"tom", :b=&gt;{:c =&gt; 1, :x =&gt; 2}}}.nested_each_pair{|k,v|
 puts k
 puts v
}
</code></pre>

I have this hash:
<pre><code> h
 =&gt; {&quot;67676.mpa&quot;=&gt;{:link=&gt;&quot;pool/sdafdsaff&quot;, :size=&gt;4556}} 

&gt; h.each do |key, value|
&gt; puts key
&gt; puts value
&gt; end
67676.mpa
linkpool/sdafdsaffsize4556
</code></pre>
How do I access the separate values in the value hash on the loop?

How do I loop over a hash of hashes?

我有这个散列： h => {"67676.mpa"=>{:link=>"pool/sdafdsaff", :size=>4556}} >  h.each do |key, value|>     puts key>   puts value>   end67676.mpalinkpool/sdafdsaffsize45...

问我如何遍历哈希表？
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