倒计时60秒发送短信
作者：互联网
1 <!DOCTYPE html>
2 <html>
3 <head>
4 <meta charset="utf-8">
5 <title>jQuery实现倒计时</title>
6 <body>
7 <input type="button" id="btn" value="免费获取验证码" onclick="sendemail()" />
8
9 <script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
10 <script type="text/javascript">
11 var countdown=60;
12 function sendemail(){
13 var obj = $("#btn");
14 settime(obj);
15
16 }
17 function settime(obj) { //发送验证码倒计时
18 if (countdown == 0) {
19 obj.attr('disabled',false);
20 obj.val("免费获取验证码");
21 countdown = 60;
22 return;
23 } else {
24 obj.attr('disabled',true);
25 obj.val("重新发送(" + countdown + ")");
26 countdown--;
27 }
28 setTimeout(function() {
29 settime(obj) }
30 ,1000)
31 }
32 </script>
33 </body>
34 </html>
标签：function,倒计时,短信,countdown,60,settime,obj 来源： https://www.cnblogs.com/sunho/p/16519305.html