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+---
+title: WebGLRenderingContext.getShaderSource()
+slug: Web/API/WebGLRenderingContext/getShaderSource
+translation_of: Web/API/WebGLRenderingContext/getShaderSource
+---
+<div>{{APIRef("WebGL")}}</div>
+
+<div><a href="/en-US/docs/Web/API/WebGL_API">WebGL API</a> 中的 <strong><code>WebGLRenderingContext.getShaderSource()</code></strong> 方法以{{domxref("DOMString")}}的形式返回了一个{{domxref("WebGLShader")}}的源码。</div>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox">DOMString <var>gl</var>.getShaderSource(<var>shader</var>);
+</pre>
+
+<h3 id="参数">参数</h3>
+
+<dl>
+ <dt>shader</dt>
+ <dd>要获取源码的 {{domxref("WebGLShader")}} 对象</dd>
+</dl>
+
+<h3 id="返回值">返回值</h3>
+
+<p>一个包含了指定着色器的源码的 {{domxref("DOMString")}} 。</p>
+
+<h2 id="例子">例子</h2>
+
+<pre class="brush: js">var shader = gl.createShader(gl.VERTEX_SHADER);
+gl.shaderSource(shader, originalSource);
+
+var source = gl.getShaderSource(shader);</pre>
+
+<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('WebGL', "#5.14.9", "getShaderSource")}}</td>
+ <td>{{Spec2('WebGL')}}</td>
+ <td>初始定义</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('OpenGL ES 2.0', "glGetShaderSource.xml", "glGetShaderSource")}}</td>
+ <td>{{Spec2('OpenGL ES 2.0')}}</td>
+ <td>(类似) OpenGL API的手册</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.getShaderSource")}}</p>
+
+<h2 id="相关链接">相关链接</h2>
+
+<ul>
+ <li>{{domxref("WebGLRenderingContext.createShader()")}}</li>
+ <li>{{domxref("WebGLRenderingContext.isShader()")}}</li>
+ <li>{{domxref("WebGLRenderingContext.deleteShader()")}}</li>
+</ul>