javascript 倒计时跳转.

时间：2021-10-15 20:31:07
 <!DOCTYPE html>

 <html>

 <head lang="en">

     <meta charset="UTF-8">

     <title></title>

     <script type="text/javascript">

         var t = 5;//设定跳转的时间

         var intervalId = setInterval("refer()", 1000); //启动1秒定时

         function refer() {

             if (t-- == 0)

                 location.href = "./h.html"; //设定跳转的链接地址

             document.getElementById('show').innerHTML = "" + t + "秒后自动跳转到指定页面"; //显示倒计时

         }

         function ref() {

             clearInterval(intervalId);  //解除倒计时.

             location.href = "./h.html"; //设定跳转的链接地址

         }

     </script>

 </head>

 <body>

 <span id="show"></span>

 <input type="button" value="手动跳转" onclick="ref()">

 </body>

 </html>

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