小广告 

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <!DOCTYPE html>
    <html lang="en">

    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <title>Document</title>

        <style>
            * {
                margin: 0;
                padding: 0;
            }

            div {
                background-color: gray;
                position: fixed;
                left: 50%;
                top: 50%;
                transform: translate(-50%, -50%);
                width: 200px;
                height: 200px;
                line-height: 2;
                display: none;
            }

            div p:nth-of-type(1) {
                text-align: right;
            }
        </style>
    </head>

    <body>
        <div id="div1">
            <p id="p1">
                ×
            </p>
            <h2>
                好广告
            </h2>
            <h2>
                请联系我
            </h2>
            <p id="p2">
                10s广告自动关闭
            </p>
        </div>

        <script>



            function shouad() {

                var t1 = setTimeout(function () {
                    $('div1').style.display = 'block'
                    //手动关闭

                    $('p1').onclick = function () {
                        $('div1').style.display = 'none'
                        shouad()
                    }

                    var count = 10;
                    $('p2').innerHTML = count + 's后自动关闭';
                    clearInterval(t2)
                    t2 = setInterval(function () {
                        count--;
                        $('p2').innerHTML = count + 's广告自动结束'
                        if (count < 0) {
                            clearInterval(t2)                       //要使用清除定时器的语句
                            $('div1').style.display = 'none'
                            shouad()
                        }
                    }, 1000)

                }, 2000)



            }

            shouad()
            var t2
            function $(id) {
                return document.getElementById(id)
            }


        </script>









    </body>

    </html>
</body>

</html>

 

posted @ 2021-07-07 18:45  JSkolo_yyds  阅读(34)  评论(0)    收藏  举报