主线程：
var worker = new Worker(‘work.js‘); ???//新建一个 Worker 线程//监听worker线程消息worker.onmessage = function (event) { ?console.log(‘Received message ‘ + event.data);}//给worker线程发消息worker.postMessage(‘Work done!‘);worker线程:
//监听主线程的消息addEventListener(‘message‘, function (e) { ?postMessage(‘You said: ‘ + e.data); ?//给主线程发消息}, false);详细使用教程：http://www.ruanyifeng.com/blog/2018/07/web-worker.html
web worker
原文地址：https://www.cnblogs.com/zhq195/p/9994646.html