鼠标点击左右键可切换图片，且鼠标移入右下角数字也可切换图片。
<!DOCTYPE html>
<html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style type="text/css"> /*重置样式*/ *{margin: 0;padding: 0; list-style: none;} /*wrap的轮播图和切换按钮样式*/ .wrap{height: 445px;width: 100%; overflow: hidden;position: relative;} .wrap ul{position: absolute;} .wrap ul li{height: 445px;} .wrap ul li img {height: 445px;width: 100%;} .wrap ol{position: absolute;right: 10px;bottom: 10px;} .wrap ol li{height: 20px;width: 20px; background-color:#fff;border: 1px solid #eee; margin-left: 10px;float:left; line-height: 20px; text-align: center;border-radius: 5px;} .wrap ol li.active{background-color: gray; color: #fff; border-radius: 5px; } .g_key img { position: absolute; top:165px; cursor: pointer; } #g_img1 { left: 97%; } </style> </head> <body> <!-- wrap包裹录播的图片以及可点击跳转的按钮 --> <div class="wrap" id="wrap"> <ul id="pic"> <li><img id="g_image1" src="image/1.jpg" alt=""></li> <li><img src="image/2.jpg" alt=""></li> <li><img src="image/3.jpg" alt=""></li> <li><img src="image/4.jpg" alt=""></li> </ul> <ol id="list"> <li class="active">1</li> <li>2</li> <li>3</li> <li>4</li> </ol> <div class="g_key"><img src="image/a.png" id="g_img1" onclick = "changeImg('next')"><img src="image/b.png" id="g_img2" onclick = "changeImg('pre')"></div> </div> <script type="text/javascript"> window.οnlοad=function(){ var wrap=document.getElementById('wrap'), pic=document.getElementById('pic'), list=document.getElementById('list').getElementsByTagName('li'), index=0, timer=null; // 定义并调用自动播放函数 if(timer){ clearInterval(timer); timer=null; } timer=setInterval(autoplay,2000); // 定义图片切换函数 function autoplay(){ index++; if(index>=list.length){ index=0; } changeoptions(index); } // 鼠标划过整个容器时停止自动播放 wrap.οnmοuseοver=function(){ clearInterval(timer); } // 鼠标离开整个容器时继续播放至下一张 wrap.οnmοuseοut=function(){ timer=setInterval(autoplay,2000); } // 遍历所有数字导航实现划过切换至对应的图片 for(var i=0;i<list.length;i++){ list[i].id=i; list[i].οnmοuseοver=function(){ clearInterval(timer); changeoptions(this.id); } } function changeoptions(curindex){ for(var j=0;j<list.length;j++){ list[j].className=''; pic.style.top=0; } list[curindex].className='active'; pic.style.top=-curindex*445+'px'; index=curindex; } } var now = 1;function changeImg(which){var img = document.getElementById("g_image1");
if(which == 'pre'){ now--;img.src = "image/" +now+".jpg"if(now < 1){ now = 4;img.src = "image/" +now+".jpg"}}
else{now++;
img.src = "image/" +now+".jpg";if(now > 4){ now = 1;img.src = "image/" +now+".jpg";}}
}//点击左右变换图片 </script> </body> </html>