需求来自于csdn问答，可以利用这个原理做秒杀抢单外挂。
代码示例如下：
<html>
<head>
<meta charset="utf-8"/>
<script type="text/javascript">
var count = 10;
var sh;
function counter(){
sh = setInterval(jishi,1000);
}
function jishi(){
var btn = document.getElementById("btn");
btn.innerHTML = "倒计时"+(--count)+"秒";
if(count == 0){
btn.disabled = false;
btn.innerHTML = "开始点击";
clearInterval(sh);
btn.onclick = function(){
var result = document.getElementById("result");
setInterval(function(){
//执行点击操作
result.innerHTML = "您点击了："+(count++)+"次";
},100);
};
btn.click();
}
}
window.onload = counter;
</script>
</head>
<body>
<button id="btn" disabled="disabled">倒计时10秒</button>
<span id="result"></span>
</body>
</html>
时间： 2024-10-02 13:00:00