定时器setInterval的用法 

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<h1>还剩余<span id="n">10</span>秒钟跳转</h1>


<script>
    // setTimeout(f,5000);
    // function f() {
    //     location.href = "http://www.baidu.com";
    // }
    var  n = 10;
    var timer = setInterval(f,1000);
    function f(){
        console.log(n);
        if (n>0){
            n--;
            document.getElementById("n").innerText = n;
        }else {
            //清除定时器
            clearInterval(timer);
            //跳转
            location.href = "https://www.cnblogs.com/itdabao";
        }
    }

</script>
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posted @ 2022-03-16 14:32  沫栀  阅读(133)  评论(0)    收藏  举报