这篇文章将为大家详细讲解有关基于JS如何实现仿百度百家主页的轮播图效果，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。
HTML
<div class="ShowEntry"> <!-- <div id="widget_content_player" class="Player" alog-group="log-player">--> <!--------- 右击箭头---------> <a href="javascript:void(0);" rel="external nofollow" rel="external nofollow" id="widget_content_player_prev" class="prev carousel-btn-prev"> <span class="icon-wrap"><img src="image/箭头左.png"></span> </a> <div id="widget_content_player_wrapper" class="player"> <!---------- 一张大图和涂上的文字 -------> <div id="widget_content_player_imgView" class="imgview"> <!---------- 一张大图 -------> <a href="" target=" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" _blank" mon="a=12&col=1&pn=2"> <img src="https://cache.yisu.com/upload/information/20200622/114/76605.gif" hadcut="1" class="active" > </a> <a href="" target=" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" _blank" mon="a=12&col=1&pn=2"> <img src="image/95eef01f3a292df570506750b5315c6035a873e0.jpg" > </a> <a href="" target=" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" _blank" mon="a=12&col=1&pn=2"> <img src="image/0824ab18972bd407e8f01db872899e510fb30944.jpg.png" > </a> <a href="" target=" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" _blank" mon="a=12&col=1&pn=2"> <img src="image/9825bc315c6034a8cfd58fc7c213495409237644.jpg" > </a> <!--<div class="readnum"><span class="tit">阅读数</span><span class="num" data-read="16913">16913</span></div>--> <!---------- 图片下方的解释文字，由js控制 哪张图对应哪个链接 -------> <div class="box"> <i class="mark"></i> <a href="http://mbcaijing.baijia.baidu.com/article/755645" target="_blank" class="title">李嘉诚400亿澳洲并购：千亿现金急寻出路</a> <a href="http://mbcaijing.baijia.baidu.com/article/755645" target="_blank" class="title" >美女</a> <a href="http://mbcaijing.baijia.baidu.com/article/755645" target="_blank" class="title" >自行车</a> <a href="http://mbcaijing.baijia.baidu.com/article/755645" target="_blank" class="title" >足球</a> </div> </div> <!---------- 右下方四个点 -------> <div class="circles"> <a href="http://guoshiliangbo.baijia.baidu.com/article/756806" class="circle" target="_blank" ></a> <a href="http://yemacaijing.baijia.baidu.com/article/755797" class="circle" target="_blank"></a> <a href="http://mbcaijing.baijia.baidu.com/article/755645" class="circle " target="_blank"></a> <a href="http://junstapo.baijia.baidu.com/article/755717" class="circle " target="_blank" ></a> </div> </div> <!--------- 右击箭头---------> <a href="javascript:void(0);" rel="external nofollow" rel="external nofollow" id="widget_content_player_next" class="next carousel-btn-next"> <span class="icon-wrap"><img src="image/右箭头.png"</span> </a> <!-- </div>--> </div>
CSS
.ShowEntry{
height:inherit;
width:70%;
background:#00F;
margin-right:10px;
float:left;
position:relative;
}
.ShowEntry .carousel-btn-prev, .ShowEntry .carousel-btn-next {
position: absolute;
top: 130px;
width: 50px;
height: 50px;
z-index: 89;
}
.addBgi{
background-image:url(../image/%E5%9C%86.png);
background-repeat: no-repeat;
}
.ShowEntry .carousel-btn-prev {
left: 15px;
background-position: -10px -95px\9;
/*background-image:url(../image/%E5%B7%A6%E7%AE%AD%E5%A4%B4.png)*/
}
.ShowEntry .carousel-btn-next {
right: 15px;
background-position: -160px -95px\9;
}
.ShowEntry .icon-wrap {
position: relative;
display: block;
margin: 10% 0 0 10%;
width: 80%;
height: 80%;
/* z-index:99;*/
}
.player {
position: relative;
}
.player .imgview {
/*width: 670px;*/
height: 300px;
position: relative;
overflow: hidden;
background: #ccc;
}
.circles{
position: absolute;
bottom: 20px;
right: 0;
width: 80px;
height: 8px;
}
/*.player .circles .active*/
.active {
background: red;
opacity: 1;/*��ȫ����*/
}
.player .circles .circle {
width: 8px;
height: 8px;
border-radius: 50%;
display: inline-block;
background:#000;
margin-left: 2px;
opacity: .7;
}
.box{
height:80px;
width:100%;
position:absolute;
bottom:0;
}
.box .title {
font-size: 18px;
line-height: 70px;
color: #fff;
font-family: "���ź�","Hiragino Sans GB";
display: block;
text-align:center;
}
.box .title:hover {
text-decoration: none;
color: #e05a5a;
}javascript
var index=0;
//周期：2秒 auto_play后不能加括号
var circulate=setInterval(auto_play,2000);//函数后面不能加括号
//自动播放
function auto_play(){
//alert(index);
if(index>=3)
{index=0;}
else {index=index+1;}
changePic(index);
/*$(".imgview img").css("display","none");*/
//$(".imgview img").attr("src",imgs[index]);
//alert(index);
}
//切换图片
function changePic(index){
//alert(index);
$(".imgview a").css("display","none");
$(".box a").css("display","none");
$(".circles a").css("background","#000");
//var src=$(".imgview a:eq("+index+")").attr("target");
//alert(src);
$(".imgview a:eq("+index+")").css("display","inline");
$(".box a:eq("+index+")").css("display","block");
$(".circles a:eq("+index+")").css("background","red");
//alert(src);
}
//鼠标进入播放区域 暂停播放
$(".imgview").mouseenter(function(){
//alert("hi!");
clearInterval(circulate);
})
//鼠标移出播放区域 开始播放
$(".imgview").mouseleave(function(){
//alert("hi!");
circulate=setInterval(auto_play,2000);
})
//鼠标移入序号圆点 切换到序号所对应图
$(".circle").mouseenter(function(){
//如何确定当前circle的序号？
var num=$(this).index();
//alert(num);
clearInterval(circulate);
changePic(num);
circulate=setInterval(auto_play,2000);
});
//点击左边箭头 切换到上一张
$(".carousel-btn-prev").click(function(){
clearInterval(circulate);
//alert(index);
//1.现在处在第几张 ：index;
if(index==0)index=3;
else index=index-1;
changePic(index);
circulate=setInterval(auto_play,2000);
});
//点击右边箭头 切换到下一张
$(".carousel-btn-next").click(function(){
clearInterval(circulate);
//alert(index);
//1.现在处在第几张 ：index;
if(index==3)index=0;
else index=index+1;
changePic(index);
circulate=setInterval(auto_play,2000);
});关于“基于JS如何实现仿百度百家主页的轮播图效果”这篇文章就分享到这里了，希望以上内容可以对大家有一定的帮助，使各位可以学到更多知识，如果觉得文章不错，请把它分享出去让更多的人看到。
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