# Worker ### Worker Worker 實例，主線程中可通過 [wx.createWorker](/read/wechat-game-api/334.md) 接口獲取，worker 線程中可通過全局變量 `worker` 獲取。 #### 方法 ##### Worker.postMessage(Object message) 向主線程/Worker 線程發送的消息。 ##### Worker.terminate() 結束當前 worker 線程，僅限在主線程 worker 對象上調用。 ##### Worker.onMessage(function callback) 監聽主線程/Worker 線程向當前線程發送的消息的事件。 #### 示例代碼 運行以下代碼需先進行基礎配置，詳細請查閱 [多線程](https://developers.weixin.qq.com/minigame/dev/tutorial/usability/worker.html) 文檔了解基礎知識和配置方法。 ``` <pre class="prettyprint"><ol class="linenums"><li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="kwd">const</span><span class="pln"> worker </span><span class="pun">=</span><span class="pln"> wx</span><span class="pun">.</span><span class="pln">createWorker</span><span class="pun">(</span><span class="str">'workers/request/index.js'</span><span class="pun">)</span><span class="pln"> </span><span class="com">// 文件名指定 worker 的入口文件路徑，絕對路徑</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln">worker</span><span class="pun">.</span><span class="pln">onMessage</span><span class="pun">(</span><span class="hljs-params"><span class="kwd">function</span></span><span class="pln"> </span><span class="pun">(</span><span class="hljs-params"><span class="pln">res</span></span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> console</span><span class="pun">.</span><span class="pln">log</span><span class="pun">(</span><span class="pln">res</span><span class="pun">)</span></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pun">})</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln">worker</span><span class="pun">.</span><span class="pln">postMessage</span><span class="pun">({</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> msg</span><span class="pun">:</span><span class="pln"> </span><span class="str">'hello worker'</span></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pun">})</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln">worker</span><span class="pun">.</span><span class="pln">terminate</span><span class="pun">()</span></code></li> </ol> ``` > 原文: <https://developers.weixin.qq.com/minigame/dev/api/worker/Worker.html>