<!DOCTYPE html><html lang="en"><head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>js实现倒计时60秒</title> <script type="text/javascript" src="js/jquery-1.11.1.min.js"></script></head><script href=""></script><body><input type="button" id="btn" value="获取验证码" οnclick="settime(this)" /><script type="text/javascript"> var countdown=60;//设置起始时间 function settime(val) { if (countdown == 0) { val.removeAttribute("disabled"); val.value="获取验证码"; countdown = 60; } else { val.setAttribute("disabled", true); val.value="重新发送(" + countdown + ")"; countdown--; setTimeout(function() { settime(val) },1000)//回调函数 } }</script></html>
转载于:https://www.cnblogs.com/HP-huoshaoxiu/p/9910099.html
相关资源：JS倒计时_javascript倒计时
