基于JavaScript实现轮播图效果

2024-04-11 12:11:36

本文实例为大家分享了JavaScript实现轮播图效果的具体代码，供大家参考，具体内容如下

学习笔记（学校的课设），实现了左右切换，按指示点切换、按小图标切换和自动切换，但是还有某些功能没完善，如：切换到某张图片后，左右并没有切换到前后相应的图片。

先看实现效果：

代码仅供参考：

<!DOCTYPE html>
<html>
 <head>
 <meta charset="UTF-8">
 <title></title>
 <style>
 .div0{
 height: 100px;
    width: 100%;
    background-color:black;
    opacity:0.75;
 }
 .div1{
 background-image: url(img/bg2.png);
    height: 400px;
    width: 100%;

 }
 .div2{
 height: 200px;
    width: 100%;
    background-color:black;
    opacity:0.75;
    position: absolute;

 }
 .spot{
 position: absolute;
 left: 10%;
 }
 .spot_list1{
 float: left;
 border:3px solid wheat;
    transform:rotate(-30deg);
    -ms-transform:rotate(-30deg);
    -moz-transform:rotate(-30deg);
    -webkit-transform:rotate(-30deg);
    -o-transform:rotate(-30deg);
     opacity:0.5;
 }
 .spot_list2{
 float: left;
 border:3px solid wheat;
    transform:rotate(-15deg);
    -ms-transform:rotate(-15deg);
    -moz-transform:rotate(-15deg);
    -webkit-transform:rotate(-15deg);
    -o-transform:rotate(-15deg);
    opacity:0.5;
 }
 .spot_list3{
 float: left;
 border:3px solid wheat;
    transform:rotate(28deg);
    -ms-transform:rotate(28deg);
    -moz-transform:rotate(28deg);
    -webkit-transform:rotate(28deg);
    -o-transform:rotate(28deg);
    opacity:0.5;
 }
 .div1_1{
 border: 10px solid gainsboro;
 width: 830px;
 height: 300px;
 left: 10%;
 top: 10%;
 position: relative;
 overflow: hidden;
 }
 .btn {
   width: 100%;
   height: 80px;
   position: absolute;
   margin: 0 auto;
   top: 120px;
  }
  .box_big {
   position: absolute;
   height: 400px;
   vertical-align: middle

  }
  #imgList{
 list-style: none;
 position: absolute;
 }

 #imgList li{
 float: left;
 margin: 0 10px;
 }
  .left_btn, .right_btn {
   width: 30px;
   height: 80px;
   background:gray;
   line-height: 90px;
   border-radius: 10px;

  }

  .left_btn {
   float: left;
  }

  .right_btn {
   float: right;
  }
  #navDiv{
  position: absolute;
 left: 300px;
 }
 #navDiv a{
 float: left;
 width: 15px;
 height: 15px;
 border-radius:50%;
 background-color: black;
 margin: 0 10px;
 opacity: 0.5;
 filter: alpha(opacity=50);
 }

 #navDiv a:hover{
 background-color: red;
 }
 </style>
 </head>
 <body>
 <div class="div0"></div>
 <div class="div1">
 <div class="div1_1">
 <div id="navDiv">
 <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></a>
 <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></a>
 <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></a>
 <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></a>
 <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></a>
 <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></a>
 </div>
 <div class="box_big">
 <ul id="imgList">
 <li><img src="img/1.jpg" id="1" ></li>
 <li><img src="img/2.jpg" id="2></li>
 <li><img src="img/3.jpg" id="3"/></li>
 <li><img src="img/4.jpg" id="4"/></li>
 <li><img src="img/5.jpg" id="5"/></li>
 <li><img src="img/6.jpg" id="6"/></li>
 </ul>
 </div> 

 <div class="btn">
  <div class="left_btn"><img src="img/prev.png"></div>
  <div class="right_btn"><img src="img/next.png"></div>
  </div>
 </div>
 </div>

 <!--小标图片-->
 <div class="div2" onmouseleave="m1()">
 <div class="spot">
 <img src="img/thumbs/1.jpg" class="spot_list1" id="spot_list1" onmouseover="mouseover(1)" onmouseout="mouseout(1)">
 <img src="img/thumbs/2.jpg" class="spot_list2" id="spot_list2" onmouseover="mouseover(2)" onmouseout="mouseout(2)">
 <img src="img/thumbs/3.jpg" class="spot_list3" id="spot_list3" onmouseover="mouseover(3)" onmouseout="mouseout(3)">
 <img src="img/thumbs/4.jpg" class="spot_list1" id="spot_list4" onmouseover="mouseover(4)" onmouseout="mouseout(4)">
 <img src="img/thumbs/5.jpg" class="spot_list2" id="spot_list5" onmouseover="mouseover(5)" onmouseout="mouseout(5)">
 <img src="img/thumbs/6.jpg" class="spot_list3" id="spot_list6" onmouseover="mouseover(6)" onmouseout="mouseout(6)">
 </div>
 </div>
 </body>
 <script>

 var box=document.getElementById("1");
 //var spot = document.getElementsByClassName("spot_list");
 var left_btn=document.getElementsByClassName("left_btn")[0];
 var right_btn=document.getElementsByClassName("right_btn")[0];
 var time = null;
  var count = 0;
 var ids=document.getElementsByTagName("a");
 ids[0].style.backgroundColor="red";
 var spot_list1=document.getElementById("spot_list1");
 spot_list1.setAttribute("class","spot_list3");
 spot_list1.style.opacity="0.98";

 //左按钮
 left_btn.onclick=function(){
 count--;
 if(count<1){
 count=6
 }
 box.src="img/" + count + ".jpg";
 for(var i=0;i<ids.length;i++){
 ids[i].style.backgroundColor="black";
 }
 ids[count - 1].style.backgroundColor="red";
 for(var i=1;i<=6;i++){
 var img=document.getElementById("spot_list"+i);
 if(img.id=="spot_list1" || img.id=="spot_list4"){
 img.setAttribute("class","spot_list1");
 img.style.opacity="0.5";

 }else if(img.id=="spot_list2" || img.id=="spot_list5"){
 img.setAttribute("class","spot_list2");
 img.style.opacity="0.5";

 }else if(img.id=="spot_list3" || img.id=="spot_list6"){
 img.setAttribute("class","spot_list3");
 img.style.opacity="0.5";

 }
 }

 var img=document.getElementById("spot_list"+count);
  if(img.id=="spot_list1" || img.id=="spot_list4"){
 img.setAttribute("class","spot_list3");
 img.style.opacity="0.98";
 }else if(img.id=="spot_list2" || img.id=="spot_list5"){
 img.setAttribute("class","spot_list3");
 img.style.opacity="0.98";
 }else if(img.id=="spot_list3" || img.id=="spot_list6"){
 img.setAttribute("class","spot_list1");
 img.style.opacity="0.98";
 }
 }

 //右按钮
 right_btn.onclick=function(){
 changeImg();
 }
 //
 var x=1;
 var changeImg = function(){
 x++;
 if(x > 6){
 x = 1;
 }
 box.src = "img/" + x + ".jpg";
 for(var i=0;i<ids.length;i++){
 ids[i].style.backgroundColor="black";
 }
 ids[x - 1].style.backgroundColor="red";
 for(var i=1;i<=6;i++){
 var img=document.getElementById("spot_list"+i);
 if(img.id=="spot_list1" || img.id=="spot_list4"){
 img.setAttribute("class","spot_list1");
 img.style.opacity="0.5";

 }else if(img.id=="spot_list2" || img.id=="spot_list5"){
 img.setAttribute("class","spot_list2");
 img.style.opacity="0.5";

 }else if(img.id=="spot_list3" || img.id=="spot_list6"){
 img.setAttribute("class","spot_list3");
 img.style.opacity="0.5";

 }
 }

 var img=document.getElementById("spot_list"+x);
  if(img.id=="spot_list1" || img.id=="spot_list4"){
 img.setAttribute("class","spot_list3");
 img.style.opacity="0.98";
 }else if(img.id=="spot_list2" || img.id=="spot_list5"){
 img.setAttribute("class","spot_list3");
 img.style.opacity="0.98";
 }else if(img.id=="spot_list3" || img.id=="spot_list6"){
 img.setAttribute("class","spot_list1");
 img.style.opacity="0.98";
 }
 }

 //设置计时器
 var show;
 show=setInterval(changeImg, 3000);

 //图片切换
 function mouseover(n){
 clearInterval(show);
 var img=document.getElementById("spot_list"+n);
 if(img.id=="spot_list1" || img.id=="spot_list4"){
 img.setAttribute("class","spot_list3");
 img.style.opacity="0.98";
 }else if(img.id=="spot_list2" || img.id=="spot_list5"){
 img.setAttribute("class","spot_list3");
 img.style.opacity="0.98";
 }else if(img.id=="spot_list3" || img.id=="spot_list6"){
 img.setAttribute("class","spot_list1");
 img.style.opacity="0.98";
 }
 box.src="img/"+n+".jpg";
 for(var i=0;i<ids.length;i++){
 ids[i].style.backgroundColor="black";
 }
 ids[n-1].style.backgroundColor="red";
 }

 for(let i=0;i<ids.length;i++){
 ids[i].onclick=function(){
 clearInterval(show);
 for(var n=0;n<ids.length;n++){
  ids[n].style.backgroundColor="black";
  }
 box.src="img/"+(i+1)+".jpg";
 ids[i].style.backgroundColor="red";
 }
 }

 //离开小图标时
 function mouseout(n){

 var img=document.getElementById("spot_list"+n);
 ids[n-1].style.backgroundColor="black";
 if(img.id=="spot_list1" || img.id=="spot_list4"){
 img.setAttribute("class","spot_list1");
 img.style.opacity="0.5";

 }else if(img.id=="spot_list2" || img.id=="spot_list5"){
 img.setAttribute("class","spot_list2");
 img.style.opacity="0.5";

 }else if(img.id=="spot_list3" || img.id=="spot_list6"){
 img.setAttribute("class","spot_list3");
 img.style.opacity="0.5";

 }

 }

 function m1(){
  //启动计时器
 show=setInterval(changeImg, 3000);
 }

 </script>
</html>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我们。

使用html+js+css 实现页面轮播图效果(实例讲解)

html 页面 <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=
JS实现自动轮播图效果(自适应屏幕宽度+手机触屏滑动)

1.本文使用js+jQuery实现轮播图,需要引用jquery包,另种实现分别是animate实现自适应的轮播,以及transform平滑轮播(在注释代码中). 2.代码中的图片大家自己更换就可以了,样式和逻辑均写在js里. 3.html标签代码,js代码 <div class="slider"> //轮播箭头 <p class="lastpic"><img src="../images/prev.png">&
js实现支持手机滑动切换的轮播图片效果实例

本文实例讲述了js实现支持手机滑动切换的轮播图片效果的方法.分享给大家供大家参考.具体如下: 运行效果如下: 完整实例代码点击此处本站下载. 使用方法案例: <script type="text/javascript" src="../src/zepto.js"></script> <script type="text/javascript" src="../src/carousel-image.js&qu
JS轮播图实现简单代码

本文实例为大家分享了js轮播图实现代码,供大家参考,具体内容如下思路: 1.首先要有个盛放图片的容器,设置为单幅图片的宽高,且overflow:hidden,这样保证每次可以只显示一个图片 2.Container内有个放图片的list进行position的定位 ,其中的图片采用float的方式,同时当图片进行轮播时,改变list的Left值使得其显示的图片发生变化. 3.图片的轮播使用定时器,通过定时器改变list的Left值是的图片循环展示 4.当鼠标滑动到图片上时,清除定时器,图片停止轮播
基于vue.js轮播组件vue-awesome-swiper实现轮播图

一般做移动端轮播图的时候,最常用的就是Swiper插件了,而vue.js也有一个轮播组件vue-awesome-swiper,用法跟swiper相似. 1.安装vie-awesome-swiper nam install vue-awesome-swiper --save-dev 2.引用vie-awesome-swiper组件,这里我是用vie-cli创建的项目,在main.js: import VueAwesomeSwiper from 'vue-awesome-swiper'; Vue.u
JS实现左右无缝轮播图代码

废话不多说了,直接给大家贴代码了. 无缝轮播图: <title>无缝轮播图</title> <style> *{margin: 0;padding:0; } ul{list-style: none;} .banner{width: 600px;height: 300px;border: 2px solid #ccc;margin: 100px auto;position: relative;overflow: hidden;} .img{position: absolu
原生js实现轮播图的示例代码

很多网站上都有轮播图,但却很难找到一个系统讲解的,因此这里做一个简单的介绍,希望大家都能有所收获,如果有哪些不正确的地方,希望大家可以指出. 原理: 将一些图片在一行中平铺,然后计算偏移量再利用定时器实现定时轮播. 步骤一:建立html基本布局如下所示: <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>轮播图</title> </hea
js实现轮播图的完整代码

今天写一个完整的轮播图,首先它需要实现三个功能: 1.鼠标放在小圆点上实现轮播 2.点击焦点按钮实现轮播 3.无缝自动轮播轮播图的原理: 一系列的大小相等的图片平铺,利用CSS布局只显示一张图片,其余隐藏.通过计算偏移量(封装一个动画函数)自动播放,或通过手动点击事件切换图片. html布局: <div id="box" class="all"> <div class="inner">
原生js实现无限循环轮播图效果

知识要点 1.实现无限循环的原理: 以偏移的距离来判断是否跳回第一张和最后一张也可以利用循环判断图片的当前索引值 var newLeft=parseInt(list.style.left)+offset;//当前的偏移量+下一次的偏移量=新的偏移量 list.style.left=newLeft+"px";//当前的偏移值=新的偏移值 //以偏移的距离来判断是否跳回第一张和最后一张 if(newLeft>-600){ list.style.left=-3000+"px
js实现点击左右按钮轮播图片效果实例

本文实例讲述了js实现点击左右按钮轮播图片效果的方法.分享给大家供大家参考.具体实现方法如下: $(function () { var index = 1; var pPage = 1; var $v_citemss = $(".citemss"); var $v_show = $v_citemss.find("ul"); v_width = $v_citemss.width();//图片展示区外围div的大小 //注:若为整数,前边不能再加var,否则会被提示un

基于JavaScript实现轮播图效果

相关推荐

随机推荐