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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 - Operations</font></h2>
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		<th>Operation</th>
		<th>Description</th>
	</tr>
	<tr align="center">
		<td><tt>map()</tt></td>
		<td>Construct an empty map</td>
	</tr>
	<tr align="center">
		<td><tt>map(<i>iter</i>, <i>iter</i>)</tt></td>
		<td>Initialize a new map from the given range of values</td>
	</tr>
	<tr align="center">
		<td><tt>begin()</tt></td>
		<td>Return iterator</td>
	</tr>
	<tr align="center">
		<td><tt>count(<i>key</i>)</tt></td>
		<td>Return number of entries with <i>key</i> (0 or 1)</td>
	</tr>
	<tr align="center">
		<td><tt>empty()</tt></td>
		<td>Return <tt>true</tt> if collection is empty</td>
	</tr>
	<tr align="center">
		<td><tt>end()</tt></td>
		<td>Return ending iterator</td>
	</tr>
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		<td><tt>erase(<i>iter</i>)</tt></td>
		<td>Erase value at indicated location</td>
	</tr>
	<tr align="center">
		<td><tt>erase(<i>iter</i>, <i>iter</i>)</tt></td>
		<td>Erase range of values</td>
	</tr>
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