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<title>. (Root Directory) (5) - File - NTFS Documentation</title>
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<h1>文件 - . (Root Directory) (5)</h1>
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<h2>概述</h2>
<p>
一个NTFS的根目录称为<q>.</q>(点)，是一个普通目录。如果卷有修改点则目录就会有一个称为<q>$MountMgrDatabase</q>的指定数据流。可参照<a href="../concepts/directory.html">目录页</a>得到更多信息。
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<h2><a class="heading" href="../attributes/index.html">属性</a></h2>
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<tr>
<th class="numeric">类型</th>
<th>描述</th>
<th>名称</th>
</tr>
<tr>
<td class="numeric"><a class="numeric" href="../attributes/standard_information.html">0x10</a></td>
<td><a href="../attributes/standard_information.html">$STANDARD_INFORMATION</a></td>
<td> </td>
</tr>
<tr>
<td class="numeric"><a class="numeric" href="../attributes/file_name.html">0x30</a></td>
<td><a href="../attributes/file_name.html">$FILE_NAME</a></td>
<td>.</td>
</tr>
<tr>
<td class="numeric"><a class="numeric" href="../attributes/security_descriptor.html">0x50</a></td>
<td><a href="../attributes/security_descriptor.html">$SECURITY_DESCRIPTOR</a></td>
<td> </td>
</tr>
<tr>
<td class="numeric"><a class="numeric" href="../attributes/data.html">0x80</a></td>
<td><a href="../attributes/data.html">$DATA</a></td>
<td>$MountMgrDatabase</td>
</tr>
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<td class="numeric"><a class="numeric" href="../attributes/index_root.html">0x90</a></td>
<td><a href="../attributes/index_root.html">$INDEX_ROOT</a></td>
<td>$I30</td>
</tr>
<tr>
<td class="numeric"><a class="numeric" href="../attributes/index_allocation.html">0xA0</a></td>
<td><a href="../attributes/index_allocation.html">$INDEX_ALLOCATION</a></td>
<td>$I30</td>
</tr>
<tr>
<td class="numeric"><a class="numeric" href="../attributes/bitmap.html">0xB0</a></td>
<td><a href="../attributes/bitmap.html">$BITMAP</a></td>
<td>$I30</td>
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<h2>文件结构</h2>
<a name="mountmgrdatabase"></a>
<h3>$MountMgrDatabase数据流</h3>
<p class="check">
只有当卷上有修改点时此数据流才存在。它由下面的组群重复组成：</p>
<!-- offset to data, size of data, where's the data? -->
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<th class="numeric">偏移量</th>
<th class="numeric">大小</th>
<th>描述</th>
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<tr>
<td class="numeric">0x00</td>
<td class="numeric">4</td>
<td>Size of entry</td>
</tr>
<tr>
<td class="numeric">0x04</td>
<td class="numeric">4</td>
<td>Flags? (bitfield?)</td>
</tr>
<tr>
<td class="numeric">0x08</td>
<td class="numeric">2</td>
<td>Offset to UNC Path</td>
</tr>
<tr>
<td class="numeric">0x0A</td>
<td class="numeric">2</td>
<td>Size of UNC Path</td>
</tr>
<tr>
<td class="numeric">0x0C</td>
<td class="numeric">2</td>
<td>Offset to data</td>
</tr>
<tr>
<td class="numeric">0x0E</td>
<td class="numeric">2</td>
<td>Size of data</td>
</tr>
</table>
<h2>注意</h2>
<h3>其他信息</h3>
<p>
参照<a href="../concepts/directory.html">目录页</a>可得到更多信息
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