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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
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+---
+title: document.createAttribute()
+slug: Web/API/Document/createAttribute
+tags:
+ - API
+ - DOM
+ - 参考
+ - 方法
+translation_of: Web/API/Document/createAttribute
+---
+<div>{{ ApiRef("DOM") }}</div>
+
+<p><code><strong>Document.createAttribute()</strong></code> 方法创建并返回一个新的属性节点。这个对象创建一个实现了 {{domxref("Attr")}} 接口的节点。这个方式下DOM不限制节点能够添加的属性种类。</p>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox"><em>attribute</em> = document.createAttribute(name)</pre>
+
+<h3 id="参数">参数</h3>
+
+<ul>
+ <li><code>name</code> ,属性的属性名。</li>
+</ul>
+
+<h3 id="返回值">返回值</h3>
+
+<p>一个 {{domxref("Attr")}} 节点。</p>
+
+<h3 id="异常">异常</h3>
+
+<ul>
+ <li><code>INVALID_CHARACTER_ERR</code> 如果参数含有非法的XML属性字符。</li>
+</ul>
+
+<h2 id="例子">例子</h2>
+
+<pre class="brush:js">var node = document.getElementById("div1");
+var a = document.createAttribute("my_attrib");
+a.value = "newVal";
+node.setAttributeNode(a);
+console.log(node.getAttribute("my_attrib")); // "newVal"
+</pre>
+
+<h2 id="备注">备注</h2>
+
+<p>该方法的返回值是一个类型为 <code>Attr</code> 的节点。你可以通过为该节点的 <code>nodeValue</code> 属性赋值来设置该属性节点的属性值,也可以使用常用的 <a href="/zh-CN/docs/Web/API/Element/setAttribute">setAttribute()</a> 方法来替代该方法.</p>
+
+<h2 id="规范">规范</h2>
+
+<table class="spectable standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">Specification</th>
+ <th scope="col">Status</th>
+ <th scope="col">Comment</th>
+ </tr>
+ <tr>
+ <td>{{SpecName('DOM WHATWG','#dom-document-createattribute','Document.createAttribute()')}}</td>
+ <td>{{Spec2("DOM WHATWG")}}</td>
+ <td>大写字符的精确表现。</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('DOM3 Core','core.html#ID-1084891198','Document.createAttribute()')}}</td>
+ <td>{{Spec2('DOM3 Core')}}</td>
+ <td>无变更。</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('DOM2 Core','core.html#ID-1084891198','Document.createAttribute()')}}</td>
+ <td>{{Spec2('DOM2 Core')}}</td>
+ <td>无变更。</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('DOM1','level-one-core.html#ID-1084891198','Document.createAttribute()')}}</td>
+ <td>{{Spec2('DOM1')}}</td>
+ <td>初始定义。</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+<div class="hidden">这个页面的兼容性表是从格式化数据生成的,如果你想贡献数据,请check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a>修改后给我们发送pull请求。</div>
+
+<p>{{Compat("api.Document.createAttribute")}}</p>
+
+<h2 id="参见">参见</h2>
+
+<ul>
+ <li>{{domxref("Document.createElement()")}}</li>
+</ul>