JS和CSS实现的原生轮播图

JS+CSS实现滑动轮播图

使用JS加CSS来实现的幻灯片，主要使用的是CSS的transform属性中的translate来实现，适合与用户交互的轮播图，展现轮播图的数量，用户可自由进行选择。

<!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;list-style: none;}.cardBox {width: 600px;height: 300px;box-shadow: 0 0 10px gray;border-radius: 5px;margin: 100px auto;position: relative;overflow: hidden;}.imgBox {width: 3600px;height: 300px;transition: all 1s;transform: translateX(0px);}.item {width: 600px;height: 300px;float: left;}.item img {width: 100%;}.btn {width: 20px;height: 20px;top: calc(50% - 20px);border-right: solid white;border-top: solid white;position: absolute;z-index: 99;opacity: .6;cursor: pointer;}.btn:hover {opacity: 1;}.left {left: 15px;transform: rotate(-135deg);}.right {right: 15px;transform: rotate(45deg);}.pointBox {display: flex;width: 50%;position: absolute;bottom: 15px;left: 50%;transform: translateX(-50%);justify-content: center;}.pointBox li {width: 8px;height: 8px;border-radius: 50%;background: gray;margin: 0 10px;opacity: .7;cursor: pointer;}.pointBox li:hover {opacity: 1;background-color: white;}</style>
</head><body><div class="cardBox"><div class="btn left"></div><div class="btn right"></div><ul class="imgBox"><li class="item"><img src="https://img2.baidu.com/it/u=2988589017,2923917558&fm=253&fmt=auto&app=120&f=JPEG?w=1280&h=800" alt=""></li><li class="item"><img src="https://img2.baidu.com/it/u=3867960631,2923014190&fm=253&fmt=auto&app=138&f=JPEG?w=889&h=500" alt=""srcset=""></li><li class="item"><img src="https://img0.baidu.com/it/u=891036130,2043934807&fm=253&fmt=auto&app=138&f=JPEG?w=889&h=500" alt=""srcset=""></li><li class="item"><img src="https://img1.baidu.com/it/u=1304255642,2961408783&fm=253&fmt=auto&app=138&f=JPEG?w=889&h=500" alt=""srcset=""></li><li class="item"><img src="https://img0.baidu.com/it/u=3822016102,3026244821&fm=253&fmt=auto&app=138&f=JPEG?w=500&h=281" alt=""srcset=""></li><li class="item"><img src="https://img1.baidu.com/it/u=847956157,2750448390&fm=253&fmt=auto&app=138&f=JPEG?w=800&h=500" alt=""srcset=""></li></ul><ul class="pointBox"><li></li><li></li><li></li><li></li><li></li><li></li></ul></div><script>let card = document.querySelector('.cardBox ul')let cardBox = document.querySelector('.cardBox')let items = document.querySelectorAll(".item")let leftBtn = document.querySelector(".left")let rightBtn = document.querySelector(".right")let points = document.querySelectorAll(".pointBox li")let index = 0items.forEach((item, index) => {let translateX = index * 600item.style.left = `${translateX}px`})let timer = nullpoints[index].style.background = 'white'points[index].style.width = '16px'points[index].style.borderRadius = '5px'const initInterval = () => {timer = setInterval(() => {index++let pointIndex = index;points[pointIndex].style.background = 'white'points[pointIndex].style.width = '16px'points[pointIndex].style.borderRadius = '5px'if (pointIndex == 0) {points[5].style.background = 'gray'points[5].style.width = '8px'} else {points[pointIndex - 1].style.background = 'gray'points[pointIndex - 1].style.width = '8px'}let translateX = -index * 600card.style.transform = `translateX(${translateX}px)`if (index >= 5) {index = -1}}, 3000);}initInterval()cardBox.addEventListener("mouseover", () => {clearInterval(timer)})cardBox.addEventListener("mouseout", () => {initInterval()})// btn.addEventListener("mouseout", () => {//   initInterval()// })leftBtn.onclick = function () {if (timer) {clearInterval(timer)}if (index <= 0) {index = 6}index--let translateX = -index * 600card.style.transform = `translateX(${translateX}px)`}rightBtn.onclick = function () {if (timer) {clearInterval(timer)}index++let translateX = -index * 600card.style.transform = `translateX(${translateX}px)`if (index >= 5) {index = -1}}points.forEach((item, i) => {item.onclick = () => {points.forEach(element => {element.style.background = 'gray'element.style.width = '8px'element.style.borderRadius = '50%'});item.style.background = 'white'item.style.width = '16px'item.style.borderRadius = '5px'index = i;let translateX = -index * 600card.style.transform = `translateX(${translateX}px)`}})</script>
</body></html>