image.png
<div class="div user-input">
<input type="number" class="code" placeholder="请输入手机验证码" required maxlength="6">
<input type="button" class="obtain generate_code" value=" 获取验证码" onclick="settime(this);">
</div>
<script type="text/javascript">
//倒计时
var countdown=10;
function settime(val) {
if (countdown == 0) {
val.removeAttribute("disabled");
val.value="获取验证码";
countdown = 10;
return false;
} else {
val.setAttribute("disabled", true);
val.value="重新发送(" + countdown + ")";
countdown--;
}
setTimeout(function() {
settime(val);
},1000);
}
</script>
