发送短信倒计时
最后更新于：2022-04-01 23:50:10
# 点击发送短信 倒计时
## html部分
~~~
~~~
## js部分
~~~
var sleep = 60, interval = null;
window.onload = function ()
{
var btn = document.getElementById ('btn');
btn.onclick = function ()
{
if (!interval)
{
this.style.backgroundColor = '#ccc';
this.disabled = "disabled";
this.style.cursor = "wait";
this.value = "重新发送 (" + sleep-- + ")";
interval = setInterval (function ()
{
if (sleep == 0)
{
if (!!interval)
{
clearInterval (interval);
interval = null;
sleep = 60;
btn.style.cursor = "pointer";
btn.removeAttribute ('disabled');
btn.value = "免费获取验证码";
btn.style.backgroundColor = '';
}
return false;
}
btn.value = "重新发送 (" + sleep-- + ")";
}, 1000);
}
}
}
~~~
';