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---
title: bookmarks.BookmarkTreeNode
slug: Mozilla/Add-ons/WebExtensions/API/bookmarks/BookmarkTreeNode
translation_of: Mozilla/Add-ons/WebExtensions/API/bookmarks/BookmarkTreeNode
---
<p>{{AddonSidebar()}}</p>
<p>代表书签树中的一个节点（书签或文件夹），子节点在它们的父文件夹中按顺序排列。</p>
<h2 id="类型">类型</h2>
<p>这种类型的值都是对象。它们包含以下属性：</p>
<dl class="reference-values">
<dt><code>id</code></dt>
<dd><code>string</code>. 节点的唯一标识符。唯一标识符在当前用户配置文件中保证唯一，并且在浏览器重新启动后仍然有效。</dd>
<dt><code>parentId</code>{{optional_inline}}</dt>
<dd><code>string</code>. 父节点的标识符（id）。根节点没有此属性。</dd>
<dt><code>index</code>{{optional_inline}}</dt>
<dd><code>integer</code>. 该节点在父文件夹中的位置（从 0 开始）。</dd>
<dt><code>url</code>{{optional_inline}}</dt>
<dd><code>string</code>. 当用户单击书签时打开的URL。文件夹没有此属性。</dd>
<dt><code>title</code></dt>
<dd><code>string</code>. 该节点显示的文字。</dd>
<dt><code>dateAdded</code>{{optional_inline}}</dt>
<dd><code>number</code>. 该节点创建的时间，表示为自 1970 年 1 月 1 日午夜至今所经过的毫秒数（new Date(dateAdded)）。</dd>
<dt><code>dateGroupModified</code>{{optional_inline}}</dt>
<dd><code>number</code>. 该文件夹内容的上一次修改时间，表示为自 1970 年 1 月 1 日午夜至今所经过的毫秒数。</dd>
<dt><code>unmodifiable</code>{{optional_inline}}</dt>
<dd>{{WebExtAPIRef('bookmarks.BookmarkTreeNodeUnmodifiable')}}. 表示该节点不可修改的原因，"<var>managed</var>"表示该节点由系统管理员配置。如果该节点可以由用户和扩展程序修改（默认）则省略。</dd>
<dt><code>children</code>{{optional_inline}}</dt>
<dd><code>array</code> of <code>{{WebExtAPIRef('bookmarks.BookmarkTreeNode')}}</code>. 该节点的所有子节点（已排序）。</dd>
</dl>
<p> </p>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
<p class="hidden">The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> and send us a pull request.</p>
<p>{{Compat("webextensions.api.bookmarks.BookmarkTreeNode", 10)}}</p>
<p>{{WebExtExamples}}</p>
<div class="note"><strong>Acknowledgements</strong>
<p>This API is based on Chromium's <a href="https://developer.chrome.com/extensions/bookmarks#type-BookmarkTreeNode"><code>chrome.bookmarks</code></a> API. This documentation is derived from <a href="https://chromium.googlesource.com/chromium/src/+/master/chrome/common/extensions/api/bookmarks.json"><code>bookmarks.json</code></a> in the Chromium code.</p>
<p>Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.</p>
</div>
<div class="hidden">
<pre>// Copyright 2015 The Chromium Authors. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
</pre>
</div>
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