轮播图-html ! DOCTYPE html html lang ="en" head meta charset ="UTF-8" meta name ="viewport" content ="width=device-width, initial-scale=1.0" meta http-equiv ="X-UA-Compatible" content ="ie=edge" title 轮播图 / title style * { padding
轮播图-html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>轮播图</title> <style> * {padding: 0;margin: 0;list-style: none;} .box {width: 400px;height: 260px;margin: 50px auto;border: 1px solid #f66;position: relative;} .box .items {width: 400px;height: 260px;position: relative;} .box .items img { position: absolute; top:0;left: 0;display: none;} .box .items img:nth-child(1) {display: block;} .box .controls .prev{width: 50px;height: 50px; position: absolute;left:10px; top: 50%;transform: translateY(-50%)} .box .controls .next{width: 50px;height: 50px; position: absolute;right:10px; top: 50%;transform: translateY(-50%)} .points { position: absolute;bottom:20px;left: 50%;transform: translateX(-50%);} .points li {width: 10px;display: inline-block;height: 10px;border-radius: 50%;background-color: #fff;} .points li.active { background-color: #f66;} </style> </head> <body> <div class="box banner1"> <div class="items"> <img src="img/1.jpg" alt=""> <img src="img/2.jpg" alt=""> <img src="img/3.jpg" alt=""> <img src="img/4.jpg" alt=""> <img src="img/5.jpg" alt=""> <img src="img/6.jpg" alt=""> </div> <div class="controls"> <button class="prev">←</button> <button class="next">→</button> </div> <ul class="points"></ul> </div> </body> <script src="jquery.js"></script> <script src="jquery.banner.js"></script> <script> $(‘.banner1‘).fade({ box:$(".box"), imgs: $(‘.banner1‘).find(‘.items‘).find(‘img‘), // 必选 prev: $(‘.banner1‘).find(‘.prev‘), // 必选，上一页按钮 next: $(‘.banner1‘).find(‘.next‘), // 必选, 下一页按钮 points: $(‘.banner1‘).find(‘.points‘), // 可选，小圆点 autoplay: true, // 可选, 默认为true delay: 4000, // 可选，默认为3000 current: 0, // 可选， 默认是第0张图片显示 duration: 500 // 可选， 默认为300 -- 动画时长 }) </script> </html>
轮播图-插件
;(function ($) { ‘use strict‘; $.fn.extend({ fade (options) { var obj = {} // 字面量对象 // console.log(options) // console.log(‘轮播图‘) // 1、通过解构赋值获取轮播图的参数 var { imgs, prev, next, points, autoplay, delay, current, duration } = options // 2、为可选参数设置默认值 autoplay = autoplay === false ? false : true // 自动轮播 delay = delay || 3000 // 自动轮播的时长 current = current || 0 // 默认显示的是哪一个图片 duration = duration || 300 // 每次动画时长 // 3、获取图片的个数 var len = imgs.length console.log(len) // 4、默认的图片显示 ani(current) // 5、点击下一页 next.on(‘click‘, function () { current++ if (current === len) { current = 0 } ani(current) }) // 6、点击上一页 prev.on(‘click‘, function () { current-- if (current === -1) { current = len - 1 } ani(current) }) // 7、显示小圆点 并且给默认的图片对应的小圆点加样式 for (var i = 0; i < len; i++) { points.append(‘<li></li>‘) } points.find(‘li‘).eq(current).addClass(‘active‘).siblings().removeClass(‘active‘) // 8、自动轮播 var timer = null if (autoplay) { timer = setInterval(function () { next.click() }, delay) } // 9、鼠标滑过事件 -- 取消自动轮播，鼠标移除，重新自动轮播 console.log(this) if (autoplay) { this.hover(function () { clearInterval(timer) }, function () { timer = setInterval(function () { next.click() }, delay) }) } // 10、小圆点滑过切换 points.find(‘li‘).on(‘mouseenter‘, function () { current = $(this).index() ani(current) }) // 封装动画的函数 function ani (current) { points.find(‘li‘).eq(current).addClass(‘active‘).siblings().removeClass(‘active‘) imgs.eq(current).stop().fadeIn(duration).siblings().stop().fadeOut(duration) } } }) })(jQuery);