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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>
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