ie与firefox里运行结果不同-慕课网

ie与firefox里运行结果不同

来源：8-17 编程练习

Purplefly

2016-09-08 17:18

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
   <title>Document</title>
</head>
<body>
   <h3>操作成功</h3>
   <span id="time">5</span>
   <span>秒离开页面</span>
   <a href="back()">返回</a>
<script>
var time = document.getElementById("time").innerHTML;
function clock(){
   time--;
   document.getElementById("time").innerHTML = time;
   if(time == 0){
       window.location.href("http://www.imooc.com");
   }
}
setInterval(clock,1000);
function back(){
   window.history.back();
}
</script>
</body>
</html>