<body>
???<div id="we">4</div>s
???<script>
???window.onload = function(){
???????var we = document.getElementById("we")
???????console.log(we.innerHTML);
??????var int=setInterval(function(){
???????????we.innerHTML--;
???????????if(we.innerHTML==0){
???????????????clearInterval(int);
???????????}
???????},1000);
???}
</script>
</body>
就这么点东西。
js和jq倒计时10S
原文地址：https://www.cnblogs.com/lieaiwen/p/8360092.html