实现发送短信验证码后60秒倒计时
- 作者: A带我去吹泡泡
- 来源: 51数据库
- 2022-08-15
<!DOCTYPE html>
<html>
<head>
<script src="http://www.51sjk.com/Upload/Articles/1/0/321/321470_20220815164621509.js"></script>
<script type="text/javascript">
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)
}
</script>
<body>
<input type="button" id="btn" value="免费获取验证码" onclick="settime(this)" />
</body>
</html>
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