---
title: ShadowRoot.innerHTML
slug: Web/API/ShadowRoot/innerHTML
tags:
  - ShadowRoot.innerHTML
translation_of: Web/API/ShadowRoot/innerHTML
---
<p>{{SeeCompatTable}}{{APIRef("Shadow DOM")}}</p>

<p> {{domxref("ShadowRoot")}} 接口的 <strong><code>innerHTML </code></strong>属性设置或返回 ShadowRoot内的DOM树。</p>

<h2 id="句法">句法</h2>

<pre class="syntaxbox">let <em>domString</em> = <em>shadowRoot</em>.innerHTML
// 返回

<em>shadowRoot</em>.innerHTML = <em>domString;</em>

// 设置
</pre>

<h3 id="值">值</h3>

<p>一个 {{domxref("DOMString")}}.</p>

<h2 id="规范">规范</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
  <tr>
   <td>{{SpecName('Shadow DOM','#widl-ShadowRoot-innerHTML','ShadowRoot.innerHTML')}}</td>
   <td>{{Spec2('Shadow DOM')}}</td>
   <td>Initial definition.</td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容性">浏览器兼容性</h2>

<p>{{CompatibilityTable}}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Edge</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari (WebKit)</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>53</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>40</td>
   <td>10</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Edge</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Phone</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>53</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>40</td>
   <td>10.1</td>
  </tr>
 </tbody>
</table>
</div>