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+---
+title: WebGLRenderingContext.getAttribLocation()
+slug: Web/API/WebGLRenderingContext/getAttribLocation
+translation_of: Web/API/WebGLRenderingContext/getAttribLocation
+---
+<div>{{APIRef("WebGL")}}</div>
+
+<p><strong><code>WebGLRenderingContext.getAttribLocation()</code></strong> 方法返回了给定{{domxref("WebGLProgram")}}对象中某属性的下标指向位置。</p>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox">GLint <var>gl</var>.getAttribLocation(<var>program</var>, <var>name</var>);
+</pre>
+
+<h3 id="参数">参数</h3>
+
+<dl>
+ <dt>program</dt>
+ <dd>一个包含了属性参数的{{domxref("WebGLProgram")}} 对象。</dd>
+ <dt>name</dt>
+ <dd>需要获取下标指向位置的 {{domxref("DOMString")}} 属性参数名</dd>
+</dl>
+
+<h3 id="返回值">返回值</h3>
+
+<p>表明属性位置的下标 {{domxref("GLint")}} 数字，如果找不到该属性则返回-1。</p>
+
+<h2 id="示例">示例</h2>
+
+<pre class="brush: js">gl.getAttribLocation(program, 'vColor');
+</pre>
+
+<h2 id="规范">规范</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">规范</th>
+   <th scope="col">状态</th>
+   <th scope="col">注释</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('WebGL', "#5.14.10", "getAttribLocation")}}</td>
+   <td>{{Spec2('WebGL')}}</td>
+   <td>原始定义.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('OpenGL ES 2.0', "glGetAttribLocation.xml", "glGetAttribLocation")}}</td>
+   <td>{{Spec2('OpenGL ES 2.0')}}</td>
+   <td>OpenGL API的主页.</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+<p class="hidden">The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> and send us a pull request.</p>
+
+<p>{{Compat("api.WebGLRenderingContext.getAttribLocation")}}</p>
+
+<h2 id="相关资料">相关资料</h2>
+
+<ul>
+ <li>{{domxref("WebGLRenderingContext.getUniformLocation()")}}</li>
+</ul>