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轮播图2
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style> *{ margin:0; padding:0; } img{ display: block; } ul{ list-style:none; } #wrap{ margin-left:200px; } #banner{ position:relative; width:638px; } /* .banner img{ display: none; }*/ #banner img{ display: block; width:638px; } #prev,#next{ display: block; width:48px; height:48px; background:rgba(0,0,0,0.5); color:#fff; position:absolute; top:50%; font:bold 30px/48px "幼圆"; text-align: center; margin-top: -24px; border-radius: 100px; cursor:pointer; -webkit-user-select:none; user-select:none } #prev{ left:22px; } #next{ right:22px; } #prev:hover,#next:hover{ background:rgba(0,0,0,0.8); } #pointer{ position:absolute; right:272px; bottom:50px; } #pointer li{ width:10px; height:10px; border-radius: 100px; background: #fff; float: left; margin-left: 5px; } #pointer li#active{ background:blue; } </style> </head> <body> <div id="wrap"> <div id="banner"> <a><img src="http://www.mamicode.com/pic0.jpg"></a> <span id="prev"> < </span> <span id="next"> > </span> <ul id="pointer"> <li class="li"></li> <li></li> <li></li> <li></li> <li></li> </ul> </div> </div> <script type="text/javascript"> var banner = document.getElementById("banner"); var next = document.getElementById("next"); var prev = document.getElementById("prev"); var imgs = banner.getElementsByTagName("img")[0]; var lis = banner.getElementsByTagName("li"); var len = lis.length; var index = 0; next.onclick = function(){ index++; if(index == 5){ index = 0; } change(index); } prev.onclick = function(){ index--; if(index == -1){ index = 4; } change(index); } function change(index){ //console.log("pic" + index + ".jpg") imgs.src = "http://www.mamicode.com/pic" + index + ".jpg"; for(var i = 0; i < lis.length; i++){ lis[i].style.background = ‘#fff‘; } //console.log(lis.length); lis[index].style.background = "#ccc"; } while(len--){ lis[len].index = len; lis[len].onmouseover = function(){ change(this.index + 1) } } </script> </body> </html>
轮播图2
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