轮播原生。

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

        html,
        body {
            height: 100vh;
        }

        .swiper-box {
            display: inline-block;
            box-sizing: border-box;
            width: 100%;
            height: 90%;
            padding: 10px;
        }

        .item {
            display: inline-block;
            width: 100%;
            height: 100%;
            display: none;
            background-size: cover;
        }

        .item-active {
            display: inline-block;
        }

        .btns {
            display: flex;
            justify-content: space-around;
            align-items: center;
        }

        .btns button {
            font-style: italic;
            /**字体斜体*/
            padding: 10px;
            border-radius: 5px;
            border: none;
            color: #4760fa;
        }

        .btns button:hover {
            cursor: pointer;
            color: #bbd0fd;
            background-color: #4760fa;
            border: none;
        }
    style>
head>

<body>
    <div class="swiper-box">
        <div class="item">div>
        <div class="item">div>
        <div class="item">div>
        <div class="item">div>
        <div class="item">div>
    div>
    <div class="btns">
        <button class="prev">prevbutton>
        <button class="next">nextbutton>
    div>
    <script>
        var items = document.getElementsByClassName('item')
        var count = Math.floor(items.length / 2)
        var prevBtn = document.getElementsByClassName('prev')[0];
        var nextBtn = document.getElementsByClassName('next')[0];
        var interval, intervalTime = 1000;
        for (var i = 0; i < items.length; i++) {
            // 获取当前item
            let item = items[i];
            // 设置背景图片
            item.style.backgroundImage = 'url(./img/' + (i + 1).toString() + '.png)';
        }
        function move(conf) {
            if (conf < 0) conf = items.length - 1;
            if (conf > items.length - 1) conf = 0;
            count = conf;
            for (let index = 0; index < items.length; index++) {
                let item = items[index];
                if (index == count) {
                    item.classList.add('item-active')
                } else {
                    item.classList.remove('item-active')
                }
            }
        }
        function bindEvents() {
            prevBtn.addEventListener('click', () => { prev(); });
            nextBtn.addEventListener('click', () => { next(); });
        }
        function timer() {
            clearInterval(interval);
            interval = setInterval(() => {
                move(++count)
            }, intervalTime)
        }
        function init() {
            move(Math.floor(items.length / 2));
            bindEvents();
            timer();
        }
        function prev() {
            console.log('prev');
            move(--count);
            timer();
        }
        function next() {
            move(++count);
            timer();
        }
        init()
    script>
body>

html>

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