一键换肤作业

换肤作业

html 部分

<!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>一键换肤</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        .container {
            width: 300px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            column-gap: 10px;
        }
        .container>img {
            width: 100%;
            border: 3px solid #fff;
            opacity: .6;
        }
        .container>img.active {
            opacity: 1;
        }
        .container>img:hover {
            opacity: 1;
            cursor: pointer;
            width: 105%;
        }
        body {
            width: 100%;
            height: 100vh;
            background-image: url(./bg.jpg);
            background-repeat: no-repeat;
            background-size: cover;
        }
    </style>
</head>
<body>
    <div class="container">
        <!-- 图片列表 -->
        <img src="./747267a8af60cdfb21d8b8d3785ce6e.png" alt="">
        <img src="./bg.jpg" alt="">
        <img src="./sz.jpg" alt="">
    </div>
</body>
</html>

 <script>
         //事件代理 让父元素担当事件监听的职务，这样就可以代理所有img的点击事件了
        const imglist = document.querySelector('.container');
        //点击图片进行换肤
        imglist.onclick = (ev) => {
            //获取图片资源
            let imgUrl = `url(${ev.target.src})`;
            //将背景换成当前点击的图片，这样换肤成功
            document.body.style.backgroundImage = imgUrl;
        }
    </script>

换肤作业

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