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| <!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>延迟跳转</title>
</head>
<body>
<h3><span id="counter">5</span>秒钟以后自动跳转到百度</h3>
<script>
var countDown = 5;
var span = document.getElementById('counter');
window.setTimeout(function() {
countDown -= 1;
if (countDown == 0) {
// window对象的location属性代表浏览器地址栏
window.location.href = 'https://www.baidu.com';
} else {
span.textContent = countDown;
// arguments是函数中的隐含对象
// 通过arguments[0]、arguments[1]可以获得函数的参数
// 通过arguments.callee可以获得正在被调用的函数
window.setTimeout(arguments.callee, 1000);
}
}, 1000);
</script>
</body>
</html>
|