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+---
+title: Document.createCDATASection()
+slug: Web/API/Document/createCDATASection
+tags:
+  - API
+  - DOM
+  - 参考
+  - 方法
+translation_of: Web/API/Document/createCDATASection
+---
+<div>{{APIRef("DOM")}}</div>
+
+<p><strong><code>createCDATASection()</code></strong> 创建并返回一个新的 CDATA 片段节点。</p>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox">var <var>CDATASectionNode</var> = <var>document</var>.createCDATASection(<var>data</var>);
+</pre>
+
+<ul>
+ <li><var>CDATASectionNode</var> 是一个 <a href="/en-US/docs/Web/API/CDATASection">CDATA 片段</a>节点。</li>
+ <li><var>data</var> 包含了要被添加至 CDATA 片段的数据的字符串。</li>
+</ul>
+
+<h2 id="示例">示例</h2>
+
+<pre class="brush:js">var docu = new DOMParser().parseFromString('&lt;xml&gt;&lt;/xml&gt;', 'application/xml');
+
+var cdata = docu.createCDATASection('Some &lt;CDATA&gt; data &amp; then some');
+
+docu.getElementsByTagName('xml')[0].appendChild(cdata);
+
+alert(new XMLSerializer().serializeToString(docu));
+// Displays: &lt;xml&gt;&lt;![CDATA[Some &lt;CDATA&gt; data &amp; then some]]&gt;&lt;/xml&gt;
+</pre>
+
+<h2 id="备注">备注</h2>
+
+<ul>
+ <li>This will only work with XML, not HTML documents (as HTML documents do not support CDATA sections); attempting it on an HTML document will throw <code>NOT_SUPPORTED_ERR</code>.</li>
+ <li>Will throw a <code>NS_ERROR_DOM_INVALID_CHARACTER_ERR</code> exception if one tries to submit the closing CDATA sequence ("<code>]]&gt;</code>") as part of the data, so unescaped user-provided data cannot be safely used without with this method getting this exception ({{domxref("document.createTextNode","createTextNode()")}} can often be used in its place).</li>
+</ul>
+
+<h2 id="规范">规范</h2>
+
+<table class="standard-table">
+ <thead>
+  <tr>
+   <th scope="col">规范</th>
+   <th scope="col">状态</th>
+   <th scope="col">备注</th>
+  </tr>
+ </thead>
+ <tbody>
+  <tr>
+   <td>{{SpecName('DOM WHATWG', '#dom-document-createcdatasection', 'document.createCDATASection')}}</td>
+   <td>{{Spec2('DOM WHATWG')}}</td>
+   <td></td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+
+
+<p>{{Compat("api.Document.createCDATASection")}}</p>