获取验证码60秒倒计时 

免费获取验证码60秒倒计时

 

<!DOCTYPE html>

<html>

<head>

<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.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="获取验证码" onclick="settime(this)" />

 

</body>

</html>

 

posted @ 2018-04-15 14:22  壁虎漫步.  阅读(296)  评论(0)  编辑  收藏  举报