基于JavaScript实现轮播图效果


Posted in Javascript onJanuary 02, 2021

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:

基于JavaScript实现轮播图效果

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三水点靠木。

Javascript 相关文章推荐
JavaScript使用prototype定义对象类型(转)[
Dec 22 Javascript
jquery 弹出层注册页面等(asp.net后台)
Jun 17 Javascript
js open() 与showModalDialog()方法使用介绍
Sep 10 Javascript
node.js+Ajax实现获取HTTP服务器返回数据
Nov 26 Javascript
DOM 高级编程
May 06 Javascript
JS实现淘宝支付宝网站的控制台菜单效果
Sep 28 Javascript
Angularjs 自定义服务的三种方式(推荐)
Aug 02 Javascript
BootStrap 可编辑表Table格
Nov 24 Javascript
javascript 网页进度条简单实例
Feb 22 Javascript
js仿网易表单及时验证功能
Mar 07 Javascript
JavaScript实现学生在线做题计时器功能
Dec 05 Javascript
JavaScript中展开运算符及应用的实例代码
Jan 14 Javascript
使用jquery实现轮播图效果
Jan 02 #jQuery
原生JS运动实现轮播图
Jan 02 #Javascript
基于JavaScript实现简单扫雷游戏
Jan 02 #Javascript
JS+CSS实现过渡特效
Jan 02 #Javascript
jQuery实现全选按钮
Jan 01 #jQuery
vue实现登录功能
Dec 31 #Vue.js
vue 实现图片懒加载功能
Dec 31 #Vue.js
You might like
php 中文字符入库或显示乱码问题的解决方法
2010/04/12 PHP
PHP和Mysqlweb应用开发核心技术 第1部分 Php基础-3 代码组织和重用2
2011/07/03 PHP
浅析PHP中Collection 类的设计
2013/06/21 PHP
Yii2隐藏frontend/web和backend/web的方法
2015/12/12 PHP
Codeigniter控制器controller继承问题实例分析
2016/01/19 PHP
Laravel框架基于ajax实现二级联动功能示例
2019/01/17 PHP
Gambit vs ForZe BO3 第二场 2.13
2021/03/10 DOTA
海量经典的jQuery插件集合
2010/01/12 Javascript
JS隐藏参数post传值实例
2013/04/18 Javascript
鼠标移到图片上变大显示而不是放大镜效果
2014/06/15 Javascript
js实现的类似于asp数据字典的数据类型代码实例
2014/09/03 Javascript
NodeJS学习笔记之Connect中间件模块(二)
2015/01/27 NodeJs
动态加载jQuery的方法
2015/06/16 Javascript
不想让浏览器运行javascript脚本的方法
2015/11/20 Javascript
js改变透明度实现轮播图的算法
2020/08/24 Javascript
ES6与CommonJS中的模块处理的区别
2018/06/13 Javascript
Vue中axios拦截器如何单独配置token
2019/12/27 Javascript
原生js实现的观察者和订阅者模式简单示例
2020/04/18 Javascript
Antd下拉选择,自动匹配功能的实现
2020/10/24 Javascript
JS hasOwnProperty()方法检测一个属性是否是对象的自有属性的方法
2021/01/29 Javascript
[31:55]完美世界DOTA2联赛循环赛 IO vs GXR BO2第一场 11.04
2020/11/05 DOTA
[30:00]完美世界DOTA2联赛PWL S2 Rebirth vs LBZS 第二场 11.28
2020/12/01 DOTA
跟老齐学Python之画圈还不简单吗?
2014/09/20 Python
Python实现数通设备端口使用情况监控实例
2015/07/15 Python
人机交互程序 python实现人机对话
2017/11/14 Python
python中将\\uxxxx转换为Unicode字符串的方法
2018/09/06 Python
python openvc 裁剪、剪切图片 提取图片的行和列
2019/09/19 Python
Python高级特性——详解多维数组切片(Slice)
2019/11/26 Python
Python3自定义json逐层解析器代码
2020/05/11 Python
HTML5实现动画效果的方式汇总
2016/02/29 HTML / CSS
巴西最大的体育用品商城:Netshoes巴西
2016/11/29 全球购物
英国最大的在线亚洲杂货店:Red Rickshaw
2020/03/22 全球购物
应届实习生的自我评价范文
2014/01/05 职场文书
白莲教口号
2014/06/18 职场文书
2014年创卫工作总结
2014/11/24 职场文书
部门2015年度工作总结
2015/04/29 职场文书