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+---
+title: Range.selectNodeContents()
+slug: Web/API/Range/selectNodeContents
+tags:
+  - API
+  - DOM
+  - 方法
+  - 范围
+translation_of: Web/API/Range/selectNodeContents
+---
+<p>{{ApiRef("DOM")}}</p>
+
+<p><strong><code>Range.selectNodeContents()</code></strong> 方法用于设置 {{ domxref("Range") }}，使其包含一个 {{ domxref("Node") }} 的内容。</p>
+
+<p>{{ domxref("Range") }} 的起始和结束节点的父节点即为引用节点。 <code>startOffset</code> 为 0,  <code>endOffset</code> 则是引用节点包含的字符数或子节点个数。</p>
+
+<h2 id="Syntax" name="Syntax">语法</h2>
+
+<pre class="syntaxbox"><em>range</em>.selectNodeContents(<em>referenceNode</em>);
+</pre>
+
+<h3 id="Parameters" name="Parameters">参数</h3>
+
+<dl>
+ <dt><em>referenceNode</em></dt>
+ <dd>此 {{ domxref("Node") }} 中的内容被包含在 {{ domxref("Range") }} 中。</dd>
+</dl>
+
+<h2 id="Example" name="Example">示例</h2>
+
+<pre class="brush: js">range = document.createRange();
+referenceNode = document.getElementsByTagName("div")[0];
+range.selectNodeContents(referenceNode);
+</pre>
+
+<h3 id="实时样例">实时样例</h3>
+
+<p>这个例子让用户使用按钮选择或取消选择一个段落。{{domxref("Document.createRange()")}}、 <code>Range.selectNodeContents()</code> 和 {{domxref("Selection.addRange()")}} 用于选择内容。{{domxref("Window.getSelection()")}} 和 {{domxref("Selection.removeAllRanges()")}} 用于取消选择。</p>
+
+<h4 id="HTML">HTML</h4>
+
+<pre>&lt;p id="p"&gt;&lt;b&gt;Use the buttons below&lt;/b&gt; to select or deselect the contents of this paragraph.&lt;/p&gt;
+&lt;button id="select-button"&gt;Select paragraph&lt;/button&gt;
+&lt;button id="deselect-button"&gt;Deselect paragraph&lt;/button&gt;
+</pre>
+
+<h4 id="JavaScript">JavaScript</h4>
+
+<pre>const p = document.getElementById('p');
+const selectButton = document.getElementById('select-button');
+const deselectButton = document.getElementById('deselect-button');
+
+selectButton.addEventListener('click', e =&gt; {
+  // Clear any current selection
+  const selection = window.getSelection();
+  selection.removeAllRanges();
+
+  // Select paragraph
+  const range = document.createRange();
+  range.selectNodeContents(p);
+  selection.addRange(range);
+});
+
+deselectButton.addEventListener('click', e =&gt; {
+  const selection = window.getSelection();
+  selection.removeAllRanges();
+});</pre>
+
+<h4 id="结果">结果</h4>
+
+<p><iframe class="live-sample-frame sample-code-frame" frameborder="0" id="frame_Live_sample" src="https://mdn.mozillademos.org/en-US/docs/Web/API/Range/selectNodeContents$samples/Live_sample?revision=1566740"></iframe></p>
+
+<h2 id="Specification" name="Specification">规范</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">规范</th>
+   <th scope="col">状态</th>
+   <th scope="col">注释</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM WHATWG', '#dom-range-selectnodecontents', 'Range.selectNodeContents()')}}</td>
+   <td>{{Spec2('DOM WHATWG')}}</td>
+   <td>无变化</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM2 Traversal_Range', 'ranges.html#Level2-Range-method-selectNodeContents', 'Range.selectNodeContents()')}}</td>
+   <td>{{Spec2('DOM2 Traversal_Range')}}</td>
+   <td>初始规范</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+<p>{{Compat("api.Range.selectNodeContents")}}</p>
+
+<h2 id="参见"><span>参见</span></h2>
+
+<div id="compat-mobile"></div>
+
+<ul>
+ <li><a href="/en-US/docs/DOM/DOM_Reference" title="/en-US/docs/DOM/DOM_Reference">The DOM interfaces index</a></li>
+</ul>