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📁 《Big C++ 》Third Edition电子书和代码全集-Part1

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<h2><font color="#009999">23.5 Maps (cont.)</font></h2>
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<ul>
	<li>Set that maintains a collection of <tt>pair</tt>s (chptr. 22)</li>
	<li>Insert key/value pairs</li>
	<li>Iterators return <tt>pair</tt>s:
		<blockquote>
<pre>map&lt;string, int&gt; database;
. . .
map&lt;string, int&gt;::iterator current = database.begin();
while (current != database.end())
{
   pair&lt;string, int&gt; element = *current;
   cout &lt;&lt; "key is " &lt;&lt; element.first &lt;&lt; " value is " &lt;&lt;
      element.second &lt;&lt; "\n";
   ++current;
}</pre>
		</blockquote>
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