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jquery實現投影片

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<!DOCTYPE html><html><head><meta charset="utf-8"><title>gakki</title><style type="text/css">*{margin: 0;padding: 0;}html, body{position: relative;width: 100%;height: 100%;}#wrap{position: absolute;left: 50%;top: 50%;transform: translate(-50%, -50%);width: 512px;height: 384px;}#wrap .inner{width: 100%;height: 100%;cursor: pointer;}#wrap .bgPicture{width: 100%;height: 100%;background: url(‘http://cdn.attach.qdfuns.com/notes/pics/201611/26/231154e8ab2zanwd59a2w2.jpg‘) 50% 50% no-repeat;}#wrap .pic{position: absolute;width: 100%;height: 100%;left: 0;top: 0;z-index: 2;}#wrap .pic .inner{position: absolute;width: 100%;height: 100%;left: 0;top: 0;list-style: none;}#wrap .icon{position: absolute;left: 50%;top: 90%;transform: translate(-50%, -50%);height: 18px;line-height: 18px;}#wrap .icon span{display: inline-block;width: 10px;height: 10px; /*不知道為什麼span和span之間有8px間距*/border-radius: 50%;border: 1px solid #d67ed6;z-index: 2;}#wrap .icon span:hover{background-color: #d67ed6;opacity: 0.2;filter: alpha(opacity=20);}#wrap .icon span.active{background-color: #d67ed6;opacity: 0.6;filter: alpha(opacity=60);height: 15px;border-radius: 30%;}#wrap .arrow{position: absolute;width: 30px;height: 50px;background-color: rgba(150,150,150,0.5);border-radius: 5px;text-align: center;line-height: 50px;font-size: 22px;font-weight: bold;color: #fff;z-index: 2;}#wrap .arrow:hover{background-color: rgba(150,150,150,0.7);color: #ddd;}#wrap .pre{left: 1%;top: 50%;transform: translateY(-50%);}#wrap .next{right: 1%;top: 50%;transform: translateY(-50%);}</style></head><body><div id="wrap"><div class="inner"><div class="bgPicture"></div><div class="pic"><a href="http://www.qdfuns.com/notes/27497/81d5010245e3a9225e21f8d3a9b475a6.html" target="_blank"><div class="inner"></div></a></ul><div class="icon"><span class="active"></span><span></span><span></span><span></span><span></span></div><div class="arrow pre"><</div><div class="arrow next">></div></div></div><script src="http://cdn.bootcss.com/jquery/3.1.1/jquery.min.js"></script><script type="text/javascript">$(function(){var n = 0;var $wrap =  $("#wrap"),    $btn = $wrap.find(‘.icon>span‘),    $bgPic = $wrap.find(‘.bgPicture‘),    $link = $wrap.find(‘.pic a‘);var url = ["http://cdn.attach.qdfuns.com/notes/pics/201611/26/231154e8ab2zanwd59a2w2.jpg","http://cdn.attach.qdfuns.com/notes/pics/201611/26/231236ugj2glgcl6g66gg4.jpg","http://cdn.attach.qdfuns.com/notes/pics/201611/26/231236c26bx5bbfp6kazzm.jpg","http://cdn.attach.qdfuns.com/notes/pics/201611/26/231236oqd8i8q158ojr0i7.jpg","http://cdn.attach.qdfuns.com/notes/pics/201611/26/231236o1iud19lkz11wqja.jpg"],href = ["http://www.qdfuns.com/notes/27497/81d5010245e3a9225e21f8d3a9b475a6.html","http://www.qdfuns.com/notes/27497/97b77870e523299cbf2be9ebf6023e00.html","http://www.qdfuns.com/notes/27497/d158ce3e48cd86b2d2ab5182ca65b7ad.html","http://www.qdfuns.com/notes/27497/7ec7ce8bcc074fe3c721b59cfcf7cb52.html","http://www.qdfuns.com/notes/27497/1b763c1383ac0d2a1f3927557379b63b.html"];/*span按鈕的函數&調用picFade函數*/function slide(){n = n>=$btn.length-1?0:++n;$btn.eq(n).siblings().removeClass(‘active‘).end().addClass(‘active‘);picFade();}/*封裝圖片淡入淡出函數*/function picFade(){var curHref = href[n];var curUrl = url[n];$bgPic.fadeTo(‘slow‘, 0.4, function() {$bgPic.css(‘background-image‘, ‘url("‘+curUrl+‘")‘).fadeTo(‘slow‘, 1, function(){$link.attr(‘href‘, curHref);});});}/*自動輪播*/var timer = setInterval(slide, 5000);/*小按鈕綁定點擊事件*/$btn.on(‘click‘, function(event) {clearInterval(timer);n = $(this).index()-1;slide();timer = setInterval(slide, 5000);});/*向前前後按鈕綁定事件*/$wrap.find(‘.arrow‘).on(‘click‘, function(event) {if (!$bgPic.is(‘:animated‘)) {clearInterval(timer);n = $(this).hasClass(‘pre‘)?n-2:n;if (n<0) {n=n+5}slide();timer = setInterval(slide, 5000);}});});</script></body></html>

　　

jquery實現投影片

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