1、代码：
<script type="text/javascript">
//创建一个空数组存放worker
var btn = document.getElementById("button");
btn.onclick = function(){
//1.判断当前浏览器是否支持worker
if(typeof(Worker) !== "undefined"){
//2.因为每个窗口购票互不影响，所以创建5个worker
for(var i=0;i<5;i++){
var worker = new Worker("getTicket.js");
worker.onmessage = getMessage;
//将worker放到数组里面
workers.push(worker);
}
}
function getMessage(event){
//获取到事件目标对象
var w = event.target;
var index = workers.indexOf(w);
var win = document.getElementById("win"+index);
if(event.data == 1){
win.className = "hasticket";
}else{
win.className = "noTicket";
}
}
}
</script>
2、实现效果图：
Paste_Image.png
