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编码猿
2024-09-27 02:06:13 +08:00
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170
历届学生/front-end-team-10/项目练习/学生项目/冯凯/练习/轮播/index.html Normal file
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<!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;
}
.swiper {
width: 630px;
height: 315px;
margin: 100px auto;
overflow: hidden;
position: relative;
}
.swiper .swiper_wrap {
display: flex;
position: relative;
transition: all 1s;
}
.swiper .swiper_wrap li {}
.swiper .swiper_wrap li img {
width: 630px;
height: 315px;
}
.swiper .button {
width: 100%;
position: absolute;
top: 50%;
display: flex;
justify-content: space-between;
transform: translateY(-50%);
}
.swiper .button div {
color: #fff;
font-size: 20px;
background: #000;
display: flex;
align-items: center;
justify-content: center;
width: 50px;
height: 50px;
cursor: pointer;
}
.swiper .button .left {}
.swiper .button .right {}
.swiper .dot {
position: absolute;
left: 50%;
transform: translateX(-50%);
bottom: 20px;
display: flex;
}
.swiper .dot li {
width: 13px;
height: 13px;
background: #fff;
border-radius: 100%;
margin-right: 10px;
cursor: pointer;
}
.swiper .dot li:last-child {
margin-right: 0px;
}
.swiper .dot .active {
background: red;
}
</style>
</head>
<body>
<div class="swiper">
<ul class="swiper_wrap" style="left: 0px;">
<li>
<img src="https://img.alicdn.com/imgextra/i4/6000000003174/O1CN01cpv0cZ1ZJjvVWrUuo_!!6000000003174-2-octopus.png"
alt="">
</li>
<li>
<img src="https://img.alicdn.com/imgextra/i2/6000000003386/O1CN01ySmLuo1asptKSfbHC_!!6000000003386-0-octopus.jpg"
alt="">
</li>
<li>
<img src="https://img.alicdn.com/imgextra/i3/6000000000084/O1CN012wKWpe1CUW5EEs61K_!!6000000000084-0-octopus.jpg"
alt="">
</li>
</ul>
<div class="button">
<div class="left">
< </div>
<div class="right"> > </div>
</div>
<ul class="dot">
<li class="active"></li>
<li></li>
<li></li>
</ul>
</div>
</body>
<script>
var timeId = null;
var index =0;
$(".right").onclick = () =>{
sport(-630)
}
$(".left").onclick = () =>{
sport(630)
}
_(".dot li").forEach( (v,i) =>{
v.onclick = () =>{
// console.dir(v);
changeDotActive(i)
}
})
function sport(offest){
var oldLeft = parseInt($(".swiper_wrap").style.left);
var newLeft = oldLeft + offest;
if (newLeft <= 0 && newLeft >= -1260) {
// $(".swiper_wrap").style.left = `${oldLeft + offest}px`
changeDotActive(newLeft / -630)
//newLeft / -630 这里反推出index 下标
}
}
function changeDotActive(i){
_(".dot li").forEach( value => {
value.classList.remove("active")
})
_(".dot li")[i].classList.add("active")
//_(".dot li")[i] 数组加下标 搞出来value
$(".swiper_wrap").style.left = `${i * -630}px`
}
function auto() {
timeId = setInterval(() => {
$(".right").onclick()
}, 2000)
}
auto()
function $(className) {
return document.querySelector(className)
}
function _(className) {
return document.querySelectorAll(className)
}
</script>
</html>

129
历届学生/front-end-team-10/项目练习/学生项目/冯凯/练习/轮播/index2.html Normal file
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<!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;
}
.swiper {
width: 630px;
height: 315px;
margin: 100px auto;
overflow: hidden;
position: relative;
}
.swiper .swiper_wrap {
display: flex;
position: relative;
transition: all 1s;
}
.swiper .swiper_wrap li {}
.swiper .swiper_wrap li img {
width: 630px;
height: 315px;
}
.swiper .button {
width: 100%;
position: absolute;
top: 50%;
display: flex;
justify-content: space-between;
transform: translateY(-50%);
}
.swiper .button div {
color: #fff;
font-size: 20px;
background: #000;
display: flex;
align-items: center;
justify-content: center;
width: 50px;
height: 50px;
cursor: pointer;
}
.swiper .button .left {}
.swiper .button .right {}
.swiper .dot {
position: absolute;
left: 50%;
transform: translateX(-50%);
bottom: 20px;
display: flex;
}
.swiper .dot li {
width: 13px;
height: 13px;
background: #fff;
border-radius: 100%;
margin-right: 10px;
cursor: pointer;
}
.swiper .dot li:last-child {
margin-right: 0px;
}
.swiper .dot .active {
background: red;
}
</style>
</head>
<body>
<div class="swiper banner">
<ul class="swiper_wrap" style="left: 0px;">
<li>
<img src="https://img.alicdn.com/imgextra/i4/6000000003174/O1CN01cpv0cZ1ZJjvVWrUuo_!!6000000003174-2-octopus.png"
alt="">
</li>
<li>
<img src="https://img.alicdn.com/imgextra/i2/6000000003386/O1CN01ySmLuo1asptKSfbHC_!!6000000003386-0-octopus.jpg"
alt="">
</li>
<li>
<img src="https://img.alicdn.com/imgextra/i3/6000000000084/O1CN012wKWpe1CUW5EEs61K_!!6000000000084-0-octopus.jpg"
alt="">
</li>
</ul>
<div class="button">
<div class="left">&#8249;</div>
<div class="right">&#8250;</div>
</div>
<ul class="dot"></ul>
</div>
<button>去下标2的图片(3)</button>
</body>
<script src="index2.js"></script>
<script>
var a = new Swiper(".banner", {
autoPlay: false,
time: 2000,
initialSlide: 0,
})
document.querySelector("button").onclick = () => {
a.slideTo(2)//绑定按钮去下一页
}
</script>
</html>

128
历届学生/front-end-team-10/项目练习/学生项目/冯凯/练习/轮播/index2.js Normal file
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class Swiper {
defaultOption = {
TimeId: null,
autoPlay: false,
time: 1000,
initialSlide: 0,
el: '.swiper',
on: { },
length: () => this._f(`.swiper_wrap li`).length,
width: () => this.$f(``).offsetWidth,
initSlideLeft: () => {
this.$f(".swiper_wrap").style.left = `${
this.defaultOption.initialSlide * -this.defaultOption.width()
}px`
}
}
constructor (el, option) {
if (el.length == 0 || this.$(el) == null) {
console.error(`类名:${el}不存在，请检查`);
} else {
this.defaultOption.el = el || this.defaultOption.el;// || 前面的不能运行可以用后面的
this.defaultOption.autoPlay = option.autoPlay || this.defaultOption.autoPlay;
this.defaultOption.time = option.time || this.defaultOption.time;
this.defaultOption.initialSlide = option.initialSlide || this.defaultOption.initialSlide;
if (option.hasOwnProperty("on")) {
this.defaultOption.on = option.on
}
this.init()
}
}
init() {
this.defaultOption.initSlideLeft()
if (this.$f(".button") != null) {
this.next()
this.prev()
}
this.defaultOption.autoPlay
? this.autoPlay()
: ''
this.$f(".dot") == null ? '' : this.renderDot()
}
next() {
this.click(".right", (v) => this.sport(1))
}
prev() {
this.click(".left", v => this.sport(-1))
}
changeDotActive(i) {
this.defaultOption.on.slideChange && this.defaultOption.on.slideChange(i)//调用这个方法传下标 前面的代码可以执行，后面的才能运行
if (this.$f(".dot") != null) {
this._f(".dot li").forEach(val => val.classList.remove("active"))
this._f(".dot li")[i].classList.add("active")
}
this.$f(".swiper_wrap").style.left = `${i * -this.defaultOption.width()}px`
}
renderDot() {
for (var i = 0; i < this.defaultOption.length(); i++) {
this.$f(".dot").innerHTML += `
<li class="${i == this.defaultOption.initialSlide ? 'active' : '' }"></li>
`
}
this.click(".dot li", (v,i) => this.changeDotActive(i))
}
autoPlay() {
this.defaultOption.TimeId = setInterval(() => this.sport(1), this.defaultOption.time)
this.$f("").onmouseover = () => clearInterval(this.defaultOption.TimeId)
this.$f("").onmouseout = () => this.autoPlay()
}
sport(offset) {
this.defaultOption.initialSlide += offset
if (this.defaultOption.initialSlide < 0) {
this.defaultOption.initialSlide = 0
}
if (this.defaultOption.initialSlide > this.defaultOption.length() - 1) {
this.defaultOption.initialSlide = this.defaultOption.length() - 1
}
if (this.defaultOption.initialSlide >= 0 && this.defaultOption.initialSlide <= this.defaultOption.length() - 1) {
this.changeDotActive(this.defaultOption.initialSlide)
}
}
slideTo(index) {
this.changeDotActive(index)
}
click(className, callback) {
this._f(className).forEach((v,i) => v.onclick = () => callback(v,i))//循环给左右绑定事件
}
$f(className) {
return this.$(`${this.defaultOption.el} ${className}`)//去单个标签
}
_f(className) {
return this._(`${this.defaultOption.el} ${className}`)//取单个数组
}
$(className) {
return document.querySelector(className)
}
_(className) {
return document.querySelectorAll(className)
}
}