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+---
+title: CanvasRenderingContext2D.removeHitRegion()
+slug: Web/API/CanvasRenderingContext2D/removeHitRegion
+translation_of: Web/API/CanvasRenderingContext2D/removeHitRegion
+---
+<div>{{APIRef}} {{obsolete_header}}</div>
+
+<p><code><strong>CanvasRenderingContext2D</strong></code><strong><code>.removeHitRegion()</code></strong> 是 Canvas 2D API 删除canvas中已存在的碰撞区域的方法。</p>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox">void <var><em>ctx</em>.removeHitRegion(id);</var>
+</pre>
+
+<h3 id="参数">参数</h3>
+
+<dl>
+ <dt>id</dt>
+ <dd>{{domxref("DOMString")}}字符串，描述将要被删除区域的 id。</dd>
+</dl>
+
+<h2 id="示例">示例</h2>
+
+<h3 id="使用_removeHitRegion_方法">使用 <code>removeHitRegion</code> 方法</h3>
+
+<p>这是一段使用 <code>removeHitRegion</code> 方法的简单的代码片段。</p>
+
+<h4 id="HTML">HTML</h4>
+
+<pre class="brush: html">&lt;canvas id="canvas"&gt;&lt;/canvas&gt;
+</pre>
+
+<h4 id="JavaScript">JavaScript</h4>
+
+<pre class="brush: js; highlight:[8]">var canvas = document.getElementById("canvas");
+var ctx = canvas.getContext("2d");
+
+// set a hit region
+ctx.addHitRegion({id: "eyes"});
+
+// remove it from the canvas
+ctx.removeHitRegion("eyes");
+</pre>
+
+<h2 id="规范描述">规范描述</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('HTML WHATWG', "scripting.html#dom-context-2d-removehitregion", "CanvasRenderingContext2D.removeHitRegion")}}</td>
+   <td>{{Spec2('HTML WHATWG')}}</td>
+   <td></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>Firefox (Gecko)</th>
+   <th>Internet Explorer</th>
+   <th>Opera</th>
+   <th>Safari</th>
+  </tr>
+  <tr>
+   <td>Basic support</td>
+   <td>{{CompatVersionUnknown}}[1]</td>
+   <td>{{CompatGeckoDesktop(30)}} [2]</td>
+   <td>{{ CompatNo }}</td>
+   <td>{{ CompatNo }}</td>
+   <td>{{ CompatNo }}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Feature</th>
+   <th>Android</th>
+   <th>Chrome for Android</th>
+   <th>Firefox Mobile (Gecko)</th>
+   <th>IE Mobile</th>
+   <th>Opera Mobile</th>
+   <th>Safari Mobile</th>
+  </tr>
+  <tr>
+   <td>Basic support</td>
+   <td>{{ CompatNo }}</td>
+   <td>{{ CompatNo }}</td>
+   <td>{{CompatGeckoDesktop(30)}} [2]</td>
+   <td>{{ CompatNo }}</td>
+   <td>{{ CompatNo }}</td>
+   <td>{{ CompatNo }}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<h3 id="兼容性注解">兼容性注解</h3>
+
+<ul>
+ <li>[1] 此特性受控于特性标识。 设置标识 <code>ExperimentalCanvasFeatures</code> 为 <code>true</code> 进行启用。</li>
+ <li>[2] 此特性受控于特性偏好设置。在 about:config 中， 设置 <code>canvas.hitregions.enabled</code> 为 true。</li>
+</ul>
+
+<h2 id="参见">参见</h2>
+
+<ul>
+ <li>{{domxref("CanvasRenderingContext2D.addHitRegion()")}} {{experimental_inline}}</li>
+ <li>{{domxref("CanvasRenderingContext2D.clearHitRegions()")}} {{experimental_inline}}</li>
+</ul>