html
<input type="button" id="btn" value="免费获取验证码" onclick="settime(this)" />
js
// 短信验证码倒计时var countdown=60;function settime(obj) { if (countdown == 0) { obj.removeAttribute("disabled"); obj.value="免费获取验证码"; countdown = 60; return; } else { obj.setAttribute("disabled", true); obj.value="重新发送(" + countdown + ")"; countdown--; } setTimeout(function() { settime(obj) } ,1000)}
原文地址:https://www.cnblogs.com/shuihanxiao/p/9813144.html
时间: 2024-10-16 17:55:55