前端开发中经常用到的发送按钮倒计时,每次都是重写,挺麻烦的,记录一下,以后直接来
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<meta content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=no" id="viewport" name="viewport">
<title>60s倒计时</title>
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
</head>
<body>
<input type="button" value="邮箱验证码" onclick="sendVerificationCode(this)" />
<script type="text/javascript">
//发送验证码按钮的60s倒计时
var countdown = 60;
function sendVerificationCode(obj) {
if(countdown == 0) {
obj.removeAttribute("disabled");
obj.value = "重新获取";
countdown = 60;
return;
} else {
obj.setAttribute("disabled", true);
obj.value = "重新(" + countdown + ")";
countdown--;
}
setTimeout(function() {
sendVerificationCode(obj)
}, 1000)
}
</script>
</body>
</html>
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