<html><body><p>计数： <output id="result"></output></p><button onclick="startWorker()">开始工作</button> <button onclick="stopWorker()">停止工作</button><p><strong>注意：</strong> Internet Explorer 9 及更早 IE 版本浏览器不支持 Web Workers.</p><script>var w;function startWorker() { if(typeof(Worker) !== "undefined") { if(typeof(w) == "undefined") { w = new Worker("/static/example/demo_workers.js"); } w.onmessage = function(event) { document.getElementById("result").innerHTML = event.data; }; } else { document.getElementById("result").innerHTML = "抱歉，你的浏览器不支持 Web Workers..."; }}function stopWorker() { w.terminate(); w = undefined;}</script></body></html>