js 灯泡开关

发布于:2023-01-04 ⋅ 阅读:(154) ⋅ 点赞:(0)

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <meta http-equiv="X-UA-Compatible" content="IE=edge">

    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <title>Document</title>

    <style>

        * {

            margin: 0;

            padding: 0;

        }

        .wrap {

            width: 100%;

            height: 100%;

            display: flex;

            flex-wrap: wrap;

        }

        img {

            display: inline-block;

            width: 74px;

            height: 115px;

        }

    </style>

</head>

<body>

    <div class="wrap">

        <img src="./img/dark.jpg" alt="">

        <img src="./img/dark.jpg" alt="">

        <img src="./img/dark.jpg" alt="">

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        <img src="./img/dark.jpg" alt="">

        <img src="./img/dark.jpg" alt="">




 

    </div>

    <script>

        var oImg = document.getElementsByTagName("img");

        for (var i = 0; i < oImg.length; i++) {

            oImg[i].tag = true;

            oImg[i].onmouseover = function () {

                console.log(this.tag)

                if (this.tag) {

                    this.src = "./img/bright.jpg";

                    this.tag = false;

                } else {

                    this.src = "./img/dark.jpg";

                    this.tag = true;

                }

            }

        }

    </script>

</body>

</html>


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