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jQuery實現擷取元素索引值index的方法，jqueryindex
本文執行個體講述了jQuery實現擷取元素索引值index的方法。分享給大家供大家參考，具體如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>jquery擷取索引值</title><style type="text/css"> *{margin:0; padding:0;} ul,li{list-style:none;} #wrap{width:980px; height:500px; overflow:hidden; margin:0 auto;} ul{width:200px; height:500px; float:left;} ul li{width:200px; height:100px; line-height:100px; text-align:center; font-size:16px; cursor:pointer;} #wrap div{width:700px; height:500px; float:right;} #btn0,.box0{background:#933;} #btn1,.box1{background:#09F;} #btn2,.box2{background:#93F;} #btn3,.box3{background:#F66;} #btn4,.box4{background:#3C0;} .box2,.box3,.box1,.box4{display:none;} #btn0.current,#btn1.current,#btn2.current,#btn3.current,#btn4.current{border:1px solid #000;}</style><script type="text/javascript" src="jquery-1.7.2.min.js"></script><script type="text/javascript"> $(function(){ $("#btn li").click(function(){ $(this).addClass("current").siblings().removeClass("current"); var n=$("#btn li").index(this); $(".box"+n).show().siblings("div").hide(); }) })</script></head><body> <div id="wrap"> <h2>點擊相應的按鈕出現相對應顏色的盒子</h2> <ul id="btn"> <li id="btn0" class="current">0</li> <li id="btn1">1</li> <li id="btn2">2</li> <li id="btn3">3</li> <li id="btn4">4</li> </ul> <div class="box0">第一個盒子</div> <div class="box1">第二個盒子</div> <div class="box2">第三個盒子</div> <div class="box3">第四個盒子</div> <div class="box4">第五個盒子</div> </div></body></html>
運行如下：
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