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---
title: <param>
slug: Web/HTML/Element/param
translation_of: Web/HTML/Element/param
---
<h2 id="概要">概要</h2>

<p><strong>HTML <code>&lt;param&gt;元素</code></strong>{{ HTMLElement("object") }}元素定义参数</p>

<table class="properties">
 <tbody>
  <tr>
   <th scope="row"><dfn><a href="https://developer.mozilla.org/en-US/docs/HTML/Content_categories" title="HTML/Content_categories">内容分类</a></dfn></th>
   <td></td>
  </tr>
  <tr>
   <th scope="row"><dfn>允许内容</dfn></th>
   <td>不允许,它是一个空元素({{Glossary("empty element")}})。</td>
  </tr>
  <tr>
   <th scope="row"><dfn>标签省略</dfn></th>
   <td>由于它是一个void元素,所以开始标签必须出现,而结束标签必须不出现。</td>
  </tr>
  <tr>
   <th scope="row"><dfn>允许的父级元素</dfn></th>
   <td>任何<a href="/zh-CN/docs/Web/Guide/HTML/Content_categories#Flow_content#Flow_content">以下内容</a><a href="https://developer.mozilla.org/en-US/docs/HTML/Content_categories#Flow_content">flow content</a>)都可以在{{ HTMLElement("object") }}元素的前面作为它的父元素。</td>
  </tr>
  <tr>
   <th scope="row"><dfn>DOM 接口</dfn></th>
   <td>{{domxref("HTMLParamElement")}}</td>
  </tr>
 </tbody>
</table>

<h2 id="属性">属性</h2>

<p><span style="line-height: 21px;">这个元素包含 </span><a href="https://developer.mozilla.org/en-US/docs/HTML/Global_attributes" style="line-height: 21px;" title="HTML/Global attributes">全局属性</a><span style="line-height: 21px;">.</span></p>

<dl>
 <dt>{{ htmlattrdef("name") }}</dt>
 <dd>参数的名字。</dd>
 <dt>{{ htmlattrdef("type") }} {{ obsolete_inline() }}</dt>
 <dd>仅当valuetype设置为“ref”时才使用。根据URI中给定的数据确定MIME类型。</dd>
 <dt>{{ htmlattrdef("value") }}</dt>
 <dd>确定参数的值。</dd>
 <dt>{{ htmlattrdef("valuetype") }} {{ obsolete_inline() }}</dt>
 <dd>确定参数的类型。可选值如下:
 <ul>
  <li>data: 默认值。该值作为字符串变量传递给对象实例。</li>
  <li>ref: 该值是存储运行时变量的资源的URI。</li>
  <li>object: 同一页面(document)中另一个{{HTMLElement("object")}}的ID。</li>
 </ul>
 </dd>
</dl>

<h2 id="示例">示例</h2>

<p>请在{{ HTMLElement("object") }}页面中查看&lt;param&gt;的示例。</p>

<h2 id="Specifications" name="Specifications">规范</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{SpecName('HTML WHATWG', 'the-iframe-element.html#the-param-element', '&lt;param&gt;')}}</td>
   <td>{{Spec2('HTML WHATWG')}}</td>
   <td> </td>
  </tr>
  <tr>
   <td>{{SpecName('HTML5 W3C', 'embedded-content-0.html#the-param-element', '&lt;param&gt;')}}</td>
   <td>{{Spec2('HTML5 W3C')}}</td>
   <td> </td>
  </tr>
  <tr>
   <td>{{SpecName('HTML4.01', 'struct/objects.html#h-13.3.2', '&lt;param&gt;')}}</td>
   <td>{{Spec2('HTML4.01')}}</td>
   <td> </td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility" name="Browser_compatibility">浏览器兼容性</h2>

<p> </p>

<p>{{Compat("html.elements.param")}}</p>

<div id="compat-mobile"> </div>

<h2 id="参阅">参阅</h2>

<ul>
 <li>{{ HTMLElement("object") }}</li>
</ul>

<div>{{HTMLRef}}</div>