要求
<!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>轮播图点击切换</title><style>* {box-sizing: border-box;}.slider {width: 560px;height: 400px;overflow: hidden;}.slider-wrapper {width: 100%;height: 320px;}.slider-wrapper img {width: 100%;height: 100%;display: block;}.slider-footer {height: 80px;background-color: rgb(100, 67, 68);padding: 12px 12px 0 12px;position: relative;}.slider-footer .toggle {position: absolute;right: 0;top: 12px;display: flex;}.slider-footer .toggle button {margin-right: 12px;width: 28px;height: 28px;appearance: none;border: none;background: rgba(255, 255, 255, 0.1);color: #fff;border-radius: 4px;cursor: pointer;}.slider-footer .toggle button:hover {background: rgba(255, 255, 255, 0.2);}.slider-footer p {margin: 0;color: #fff;font-size: 18px;margin-bottom: 10px;}.slider-indicator {margin: 0;padding: 0;list-style: none;display: flex;align-items: center;}.slider-indicator li {width: 8px;height: 8px;margin: 4px;border-radius: 50%;background: #fff;opacity: 0.4;cursor: pointer;}.slider-indicator li.active {width: 12px;height: 12px;opacity: 1;}</style>
</head><body><div class="slider"><div class="slider-wrapper"><img src="./images/slider01.jpg" alt="" /></div><div class="slider-footer"><p>对人类来说会不会太超前了?</p><ul class="slider-indicator"><li class="active"></li><li></li><li></li><li></li><li></li><li></li><li></li><li></li></ul><div class="toggle"><button class="prev"><</button><button class="next">></button></div></div></div><script>// 1. 初始数据const sliderData = [{ url: './images/slider01.jpg', title: '对人类来说会不会太超前了?', color: 'rgb(100, 67, 68)' },{ url: './images/slider02.jpg', title: '开启剑与雪的黑暗传说!', color: 'rgb(43, 35, 26)' },{ url: './images/slider03.jpg', title: '真正的jo厨出现了!', color: 'rgb(36, 31, 33)' },{ url: './images/slider04.jpg', title: '李玉刚:让世界通过B站看到东方大国文化', color: 'rgb(139, 98, 66)' },{ url: './images/slider05.jpg', title: '快来分享你的寒假日常吧~', color: 'rgb(67, 90, 92)' },{ url: './images/slider06.jpg', title: '哔哩哔哩小年YEAH', color: 'rgb(166, 131, 143)' },{ url: './images/slider07.jpg', title: '一站式解决你的电脑配置问题!!!', color: 'rgb(53, 29, 25)' },{ url: './images/slider08.jpg', title: '谁不想和小猫咪贴贴呢!', color: 'rgb(99, 72, 114)' },]const img = document.querySelector(`.slider-wrapper img`)//获取slider-wrapper类下的图片const p = document.querySelector(`p`) //获取p标签//开始定时轮番let i = 0setInterval(function () {i++ //因为进入页面会显示第一个所以都要在第一个之后显示//每次循环完成后从头开始if(i==sliderData.length){i=0}img.src = sliderData[i].url //更改第i个图像p.innerHTML = sliderData[i].title //更改第i个标题文字//更改小圆点//每次删除上一次的小圆点亮document.querySelector(`.slider-indicator .active`).classList.remove(`active`)//获取小圆点document.querySelector(`.slider-indicator li:nth-child(${i+1})`).classList.add(`active`)//因为内容有0-7,但是小圆点是1-8{变亮 active 这个类}}, 1000)</script>
</body></html>