<!DOCTYPE HTML><html lang="en-US"><head><meta charset="UTF-8"><title></title></head><body><h2></h2><button>clearTimeout</button><button>clearInterval</button><script type="text/javascript">var h2 = document.getElementsByTagName(‘h2‘)[0];//获取时间，每隔1s，更新var t1 = setInterval(function(){var d1 = new Date();var y = d1.getFullYear();var m = d1.getMonth() + 1;var d = d1.getDate();var h = d1.getHours();var i = d1.getMinutes();var s = d1.getSeconds();//构造表示时间的字符串var str = y + "年" + m +"月" + d + "日" + h + "时" + i + "分" + s + "秒";h2.innerHTML = str;//写入到h2标签中},1000);</script><script type="text/javascript">function f1(){console.log(‘setTimeout‘);}var t1 = window.setTimeout(f1,1000);console.log( t1 );var btns = document.getElementsByTagName(‘button‘);btns[0].onclick = function(){clearTimeout(t1);}var t2 = setInterval(function(){console.log( ‘setInterval‘ );},1500);btns[1].onclick = function(){clearInterval(t2);}</script></body></html>
关于计时器的js函数
原文地址：https://www.cnblogs.com/xiaobaizitaibai/p/8688592.html