轮播图点击切换：
<!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)' },]let i = 0const img = document.querySelector('.slider-wrapper img')const p = document.querySelector('.slider-footer p')const footer = document.querySelector('.slider-footer')// 自动播放模块let timerId = setInterval(function () {next.click()}, 1000)// 按钮：向后跳const next = document.querySelector('.next')next.addEventListener('click', function () {i++i = i >= sliderData.length ? 0 : itoggle()})// 按钮：向前跳const prev = document.querySelector('.prev')prev.addEventListener('click', function () {i--i = i < 0 ? sliderData.length - 1 : itoggle()})// 共同部分function toggle() {i = i >= sliderData.length ? 0 : iimg.src = sliderData[i].urlp.innerHTML = sliderData[i].titlefooter.style.backgroundColor = sliderData[i].colordocument.querySelector('.slider-indicator .active').classList.remove('active')document.querySelector(`.slider-indicator li:nth-child(${i + 1})`).classList.add('active')}// 鼠标经过 停止定时器const slider = document.querySelector('.slider')slider.addEventListener('mouseenter', function () {clearInterval(timerId)})// 鼠标离开 开始定时器slider.addEventListener('mouseleave', function () {clearInterval(timerId)timerId = setInterval(function () {// 利用js自动调用点击事件 click() 一定加小括号调用函数next.click()}, 1000)})</script>
</body></html>随机点名：
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<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>随机点名</title><style>* {margin: 0;padding: 0;}h2 {text-align: center;}.box {width: 600px;margin: 50px auto;display: flex;font-size: 25px;line-height: 40px;}.qs {width: 450px;height: 40px;color: red;}.btns {text-align: center;}.btns button {width: 120px;height: 35px;margin: 0 50px;}</style>
</head><body><h2>随机点名</h2><div class="box"><span>名字是：</span><div class="qs">这里显示姓名</div></div><div class="btns"><button class="start">开始</button><button class="end">结束</button></div><script>// 数据数组const arr = ['马超', '黄忠', '赵云', '关羽', '张飞']let timerId = 0let random = 0const qs = document.querySelector('.qs')const start = document.querySelector('.start')start.addEventListener('click', function () {timerId = setInterval(function () {random = parseInt(Math.random() * arr.length)qs.innerHTML = arr[random]}, 30)if (arr.length === 1) {start.disabled = end.disabled = true}})const end = document.querySelector('.end')end.addEventListener('click', function () {clearInterval(timerId)arr.splice(random, 1)})</script>
</body></html>小米搜索框：
<!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>小米搜索框</title><style>* {margin: 0;padding: 0;box-sizing: border-box;}ul {list-style: none;}.mi {position: relative;width: 223px;margin: 100px auto;}.mi input {width: 223px;height: 48px;padding: 0 10px;font-size: 14px;line-height: 48px;border: 1px solid #e0e0e0;outline: none;}.mi .search {border: 1px solid #ff6700;}.result-list {display: none;position: absolute;left: 0;top: 48px;width: 223px;border: 1px solid #ff6700;border-top: 0;background: #fff;}.result-list a {display: block;padding: 6px 15px;font-size: 12px;color: #424242;text-decoration: none;}.result-list a:hover {background-color: #eee;}</style></head><body><div class="mi"><input type="search" placeholder="小米笔记本"><ul class="result-list"><li><a href="#">全部商品</a></li><li><a href="#">小米11</a></li><li><a href="#">小米10S</a></li><li><a href="#">小米笔记本</a></li><li><a href="#">小米手机</a></li><li><a href="#">黑鲨4</a></li><li><a href="#">空调</a></li></ul></div><script>const input = document.querySelector('[type=search]')const ul = document.querySelector('.result-list')input.addEventListener('focus', function () {ul.style.display = 'block'input.classList.add('search')})input.addEventListener('blur', function () {ul.style.display = 'none'input.classList.remove('search')})</script>
</body></html>评论回车发布：
<!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>评论回车发布</title><style>.wrapper {min-width: 400px;max-width: 800px;display: flex;justify-content: flex-end;}.avatar {width: 48px;height: 48px;border-radius: 50%;overflow: hidden;background: url(./images/avatar.jpg) no-repeat center / cover;margin-right: 20px;}.wrapper textarea {outline: none;border-color: transparent;resize: none;background: #f5f5f5;border-radius: 4px;flex: 1;padding: 10px;transition: all 0.5s;height: 30px;}.wrapper textarea:focus {border-color: #e4e4e4;background: #fff;height: 50px;}.wrapper button {background: #00aeec;color: #fff;border: none;border-radius: 4px;margin-left: 10px;width: 70px;cursor: pointer;}.wrapper .total {margin-right: 80px;color: #999;margin-top: 5px;opacity: 0;transition: all 0.5s;}.list {min-width: 400px;max-width: 800px;display: flex;}.list .item {width: 100%;display: flex;}.list .item .info {flex: 1;border-bottom: 1px dashed #e4e4e4;padding-bottom: 10px;}.list .item p {margin: 0;}.list .item .name {color: #FB7299;font-size: 14px;font-weight: bold;}.list .item .text {color: #333;padding: 10px 0;}.list .item .time {color: #999;font-size: 12px;}</style>
</head><body><div class="wrapper"><i class="avatar"></i><textarea id="tx" placeholder="发一条友善的评论" rows="2" maxlength="200"></textarea><button>发布</button></div><div class="wrapper"><span class="total">0/200字</span></div><div class="list"><div class="item" style="display: none;"><i class="avatar"></i><div class="info"><p class="name">清风徐来</p><p class="text">大家都辛苦啦，感谢各位大大的努力，能圆满完成真是太好了[笑哭][支持]</p><p class="time">2022-10-10 20:29:21</p></div></div></div><script>const tx = document.querySelector('#tx')const total = document.querySelector('.total')const item = document.querySelector('.item')const text = document.querySelector('.text')// 1. 当我们文本域获得了焦点，就让 total 显示出来tx.addEventListener('focus', function () {total.style.opacity = 1})// 2. 当我们文本域失去了焦点，就让 total 隐藏出来tx.addEventListener('blur', function () {total.style.opacity = 0})// 3. 检测用户输入tx.addEventListener('input', function () {// console.log(tx.value.length) 得到输入的长度total.innerHTML = `${tx.value.length}/200字`})// 4. 按下回车发布评论tx.addEventListener('keyup', function (e) {// 只有按下的是回车键，才会触发// console.log(e.key)if (e.key === 'Enter') {// 如果用户输入的不为空就显示和打印if (tx.value.trim()) {// console.log(11)item.style.display = 'block'// console.log(tx.value) // 用户输入的内容text.innerHTML = tx.value}// 等我们按下回车，结束，清空文本域tx.value = ''// 按下回车之后，就要把 字符统计 复原total.innerHTML = '0/200字'}})</script>
</body></html>tab栏切换：
<!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>tab栏切换</title><style>* {margin: 0;padding: 0;}.tab {width: 590px;height: 340px;margin: 20px;border: 1px solid #e4e4e4;}.tab-nav {width: 100%;height: 60px;line-height: 60px;display: flex;justify-content: space-between;}.tab-nav h3 {font-size: 24px;font-weight: normal;margin-left: 20px;}.tab-nav ul {list-style: none;display: flex;justify-content: flex-end;}.tab-nav ul li {margin: 0 20px;font-size: 14px;}.tab-nav ul li a {text-decoration: none;border-bottom: 2px solid transparent;color: #333;}.tab-nav ul li a.active {border-color: #e1251b;color: #e1251b;}.tab-content {padding: 0 16px;}.tab-content .item {display: none;}.tab-content .item.active {display: block;}</style>
</head><body><div class="tab"><div class="tab-nav"><h3>每日特价</h3><ul><li><a class="active" href="javascript:;">精选</a></li><li><a href="javascript:;">美食</a></li><li><a href="javascript:;">百货</a></li><li><a href="javascript:;">个护</a></li><li><a href="javascript:;">预告</a></li></ul></div><div class="tab-content"><div class="item active"><img src="./images/tab00.png" alt="" /></div><div class="item"><img src="./images/tab01.png" alt="" /></div><div class="item"><img src="./images/tab02.png" alt="" /></div><div class="item"><img src="./images/tab03.png" alt="" /></div><div class="item"><img src="./images/tab04.png" alt="" /></div></div></div><script>// 1. a 模块制作 要给 5个链接绑定鼠标经过事件// 1.1 获取 a 元素 const as = document.querySelectorAll('.tab-nav a')// console.log(as) for (let i = 0; i < as.length; i++) {// console.log(as[i])// 要给 5个链接绑定鼠标经过事件as[i].addEventListener('mouseenter', function () {// console.log('鼠标经过')// 排他思想 // 干掉别人 移除类activedocument.querySelector('.tab-nav .active').classList.remove('active')// 我登基 我添加类 active this 当前的那个 a this.classList.add('active')// 下面5个大盒子 一一对应 .item // 干掉别人document.querySelector('.tab-content .active').classList.remove('active')// 对应序号的那个 item 显示 添加 active 类document.querySelector(`.tab-content .item:nth-child(${i + 1})`).classList.add('active')})}</script>
</body></html>个人注册-同意协议：
<!DOCTYPE html>
<html><head><meta charset="UTF-8" /><title>个人注册</title><link rel="stylesheet" href="./css/7.3/common.css" /><link rel="stylesheet" href="./css/7.3/index.css" /><link rel="icon" href="./images/7.3/favicon.ico" />
</head><body><div class="register py-container"><!--head--><div class="logoArea"><a href="home.html" class="logo"></a></div><!--register--><div class="registerArea"><h3>注册新用户<span class="go">我有账号，去<a href="login.html">登陆</a></span></h3><div class="info"><form class="sui-form form-horizontal"><div class="control-group"><label class="control-label">用户名：</label><div class="controls"><input type="text" class="input-xfat input-xlarge" placeholder="用户名" /></div></div><div class="control-group"><label class="control-label">邮箱：</label><div class="controls"><input type="text" class="input-xfat input-xlarge" placeholder="邮箱" /></div></div><div class="control-group"><label class="control-label">登录密码：</label><div class="controls"><input type="password" class="input-xfat input-xlarge" placeholder="设置登录密码" /></div></div><div class="control-group"><label class="control-label">确认密码：</label><div class="controls"><input type="password" class="input-xfat input-xlarge" placeholder="再次确认密码" /></div></div><div class="control-group"><span class="control-label"> </span><label class="controls"><input id="agree" name="m1" type="checkbox" checked /><span>同意协议并注册《品优购用户协议》</span></label></div><div class="control-group"><span class="control-label"></span><div class="controls btn-reg"><button id="registerBtn" class="sui-btn btn-block btn-xlarge btn-danger" href="#">完成注册</button></div></div></form><div class="clearfix"></div></div></div><!--foot--><div class="py-container copyright"><ul><li><a href="#">关于我们</a></li><li><a href="#">联系我们</a></li><li><a href="#">联系客服</a></li><li><a href="#">商家入驻</a></li><li><a href="#">营销中心</a></li><li><a href="#">手机品优购</a></li><li><a href="#">销售联盟</a></li><li><a href="#">品优购社区</a></li><li><a href="#">品优购公益</a></li><li><a href="#">English Site</a></li><li><a href="#">Contact U</a></li></ul><div class="address">地址：北京市昌平区建材城西路金燕龙办公楼一层 邮编：100096电话：400-618-4000 传真：010-82935100</div><div class="beian">京ICP备08001421号京公网安备110108007702</div></div></div><script>// 思路// 1. 获取元素 复选框 和 按钮 const agree = document.querySelector('#agree')const registerBtn = document.querySelector('#registerBtn')// 2. 给按钮注册点击事件agree.addEventListener('click', function () {// 2.1 如果复选框选中，按钮就启用，如果复选框不选中，按钮就禁用// console.log(this.checked) // 没有选中是false// console.log(registerBtn.disabled) // registerBtn.disabled = true// 2.2 注意， 复选框选中是true， 按钮启用 disable 是false，是相反的要小心哦registerBtn.disabled = !this.checked})// 2.1 如果复选框选中，按钮就启用，如果复选框不选中，按钮就禁用</script>
</body></html>仿京东显示隐藏密码：
<!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>Document</title><style>.box {position: relative;width: 400px;border-bottom: 1px solid #ccc;margin: 100px auto;}.box input {width: 370px;height: 30px;border: 0;outline: none;}.box label {position: absolute;top: 2px;right: 2px;width: 24px;height: 24px;background-color: pink;cursor: pointer;background: url(./images/close.png) no-repeat;background-size: cover;}.box label.active {background-image: url(./images/open.png);}</style>
</head><body><div class="box"><label for=""></label><input type="password" name="" id="pwd"></div><script>// 1. 获取元素 label 和 input const label = document.querySelector('label')const input = document.querySelector('input')// 2. 给label 注册事件， 可以切换类实现图片的切换// 声明一个变量来控制let flag = truelabel.addEventListener('click', function () {this.classList.toggle('active')// 3. 因为要修改input的 type属性 text和password，可以使用一个变量来控制 flag ， 如果为true 就切换为text ，如果为false就修改为 passwordif (flag) {input.type = 'text'} else {input.type = 'password'}flag = !flag})</script>
</body></html>验证码倒计时：
<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>练习 - 网页时钟</title><style>body {padding: 40px;}ul {padding: 0;list-style: none;}li {margin: 10px 0;line-height: 26px;display: flex;}input,button {padding: 0;margin-left: 10px;display: block;}input {width: 190px;outline: none;}button {width: 120px;}.verify {width: 60px;}</style>
</head><body><ul><li>手机号:<input type="text"></li><li>验证码:<input type="text" class="verify"><button id="btn">获取验证码</button></li></ul><script>// 1. 获取元素 按钮const btn = document.querySelector('#btn')// 2. 给按钮注册点击事件btn.addEventListener('click', function () {// 3. 点击之后，禁用按钮，同时开启倒计时this.disabled = true// 控制显示数字的let i = 5btn.innerHTML = `${i}秒之后重新获取`let timer = setInterval(function () {i--// 在定时器里面不能用this，this执行的windowbtn.innerHTML = `${i}秒之后重新获取`// 4. 如果时间为0，则清除定时器，并且更改文字if (i < 0) {clearInterval(timer)btn.innerHTML = '获取验证码'btn.disabled = false}}, 1000)})</script>
</body></html>手风琴：
<!DOCTYPE html>
<html><head lang="en"><meta charset="UTF-8"><title>手风琴</title><style>ul {list-style: none;}* {margin: 0;padding: 0;}div {width: 1200px;height: 400px;margin: 50px auto;border: 1px solid red;overflow: hidden;}div li {width: 240px;height: 400px;float: left;transition: all 500ms;}div ul {width: 1200px;}</style>
</head><body><div id="box"><ul><li><a href="#"><img src="./images/1.jpg" alt=""></a></li><li><a href="#"><img src="./images/2.jpg" alt=""></a></li><li><a href="#"><img src="./images/3.jpg" alt=""></a></li><li><a href="#"><img src="./images/4.jpg" alt=""></a></li><li><a href="#"><img src="./images/5.jpg" alt=""></a></li></ul></div>
</body>
<script>// 获取元素const box = document.querySelectorAll('li');// lis = [li, li, li, li, li]// 分析：// 1、鼠标进入显示图片，// 鼠标进入li，让当前li变成800，其他的li变成100for (let i = 0; i < box.length; i++) {box[i].addEventListener('mouseenter', function () {for (let j = 0; j < box.length; j++) {// 事件触发执行，为了让所有li变成240宽的box[j].style.width = '100px';}this.style.width = '800px'})box[i].addEventListener('mouseleave', function () {// 让所有的li变成240for (let j = 0; j < box.length; j++) {// 事件触发执行，为了让所有li变成240宽的box[j].style.width = '240px';}})}</script></html>
)
)
