获取短信验证码倒计时代码实现
<%@ Page Language=”C#” AutoEventWireup=”true” CodeBehind=”Demo.aspx.cs” Inherits=”WM.MemberRegister.Web.Demo” %>
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<html xmlns=”http://www.w3.org/1999/xhtml” > <head runat=”server”> <title>无标题页</title> <script type=”text/javascript”>
var clock = \’\’;
var nums = 10;
var btn;
function sendCode(thisBtn)
{
btn = thisBtn;
btn.disabled = true; //将按钮置为不可点击
btn.value = nums+\’秒后可重新获取\’;
clock = setInterval(doLoop, 1000); //一秒执行一次
}
function doLoop()
{
nums–;
if(nums > 0){
btn.value = nums+\’秒后可重新获取\’;
}else{
clearInterval(clock); //清除js定时器
btn.disabled = false;
btn.value = \’点击发送验证码\’;
nums = 10; //重置时间
}
}
</script> </head> <body> <form id=”form1″ runat=”server”> <div> <input type=”button” style=”height:32px;width:120px;” value=”点击发送验证码” onclick=”sendCode(this)” /> </div> </form> </body> </html>