<!DOCTYPE html><html> ???<head> ???????<meta charset="utf-8"> ???????<title></title> ???</head> ???<body> ???</body> ???<script type="application/javascript"> ???????setInterval(function(){ ???????????console.log(new Date()); ???????},1000) ???</script></html>js每隔一段时间执行函数
原文地址：https://www.cnblogs.com/daihu/p/9959133.html