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+---
+title: WebGLRenderingContext.getProgramInfoLog()
+slug: Web/API/WebGLRenderingContext/getProgramInfoLog
+translation_of: Web/API/WebGLRenderingContext/getProgramInfoLog
+---
+<div>{{APIRef("WebGL")}}</div>
+
+<p><strong>WebGLRenderingContext.getProgramInfoLog</strong>  返回参数中指定的{{domxref("WebGLProgram")}} object 的信息. 这些信息包括在linking过程中的错误以及 <code>WebGLProgram</code> objects 合法性检查的错误.</p>
+
+<h2 id="Syntax">Syntax</h2>
+
+<pre class="syntaxbox">gl.getProgramInfoLog(program);</pre>
+
+<h3 id="Parameters">Parameters</h3>
+
+<dl>
+ <dt>program</dt>
+ <dd>A {{domxref("WebGLProgram")}} to query.</dd>
+</dl>
+
+<h3 id="Return_value">Return value</h3>
+
+<p>返回 {{domxref("DOMString")}} 包含 diagnostic , warning ...等等关于上一次linking和valiadation操作的信息. 对于刚刚创建的{{domxref("WebGLProgram")}} object , 返回一个空字符串.</p>
+
+<h2 id="Examples">Examples</h2>
+
+<h3 id="Checking_program_errors">Checking program errors</h3>
+
+<pre class="brush: js">var canvas = document.getElementsById('canvas');
+var gl = canvas.getContext('webgl');
+var program = gl.createProgram();
+
+//vsSource is the source-code-string of vertex-shader
+//fsSource is the source-code-string of fragment-shader
+var vertexShader = loadShader(gl, gl.VERTEX_SHADER, vsSource);
+var fragmentShader = loadShader(gl, gl.FRAGMENT_SHADER, fsSource);
+
+// Attach pre-existing shaders
+gl.attachShader(program, vertexShader);
+gl.attachShader(program, fragmentShader);
+
+gl.linkProgram(program);
+
+gl.getProgramInfoLog(program);
+</pre>
+
+<h2 id="Specifications">Specifications</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", "getProgramInfoLog")}}</td>
+   <td>{{Spec2('WebGL')}}</td>
+   <td>Initial definition.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('OpenGL ES 2.0', "glGetProgramInfoLog.xml", "glGetProgramInfoLog")}}</td>
+   <td>{{Spec2('OpenGL ES 2.0')}}</td>
+   <td>Man page of the OpenGL API.</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Browser compatibility</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.getProgramInfoLog")}}</p>
+
+<h2 id="See_also">See also</h2>
+
+<ul>
+ <li>{{domxref("WebGLRenderingContext.getShaderInfoLog()")}}</li>
+ <li>{{domxref("WebGLRenderingContext.getError()")}}</li>
+</ul>