for(var i= 0,len = oLis.length;i<len;i++)

for(var i= 0,len = oLis.length;i<len;i++)

<!DOCTYPE html>

<html>

<head>

<meta charset="UTF-8">

<title>实践题 - 选项卡</title>

<style type="text/css">

*{padding:0px;margin: 0px;font:12px normal "microsoft yahei";}

#tabs {width:290px;

padding:5px;

height:150px;

margin:20px;

}

#tabs ul{list-style:none;

display: block;

height:30px;

line-height:30px;

border-bottom:2px saddlebrown solid;

}

#tabs ul li{background:#fff;

cursor:pointer;

float:left;

list-style:none;

height:28px;

line-height:28px;

margin:0px 3px;

border:1px solid #aaaaaa;

border-bottom:none;

display:inline-block;

width:60px;

text-align: center;

}

#tabs ul li.on{border-top:2px solid saddlebrown;

border-bottom: 2px solid #fff;

}

#tabs div{height:120px;

line-height: 25px;

border:1px solid #336699;

border-top:none;

padding:5px;

}

.hide{display: none;}

</style>

<script type="text/javascript">

window.onload = function(){

var oTab = document.getElementById("tabs");

var oUl = oTab.getElementsByTagName("ul")[0];

var oLis = oUl.getElementsByTagName("li");

var oDivs= oTab.getElementsByTagName("div");

for(var i= 0,len = oLis.length;i<len;i++){

oLis[i].index = i;

oLis[i].onclick = function() {

for(var n= 0;n<len;n++){

oLis[n].className = "";

oDivs[n].className = "hide";

}

this.className = "on";

oDivs[this.index].className = "";

}

};

}

</script>

</head>

<body>

<div id="tabs">

<ul>

<li class="on">房产</li>

<li>家居</li>

<li>二手房</li>

</ul>

<div>

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</div>

<div class="hide">

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</div>

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</body>

</html>

for(var i= 0,len = oLis.length;i<len;i++)这段代码我为什么不能这么写

for(var i=0;i<oLis.length;i++)

沐沐幕

浏览 2472回答 4

4回答

慕的地8582982

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

0

0

qq_佛说过过过_0

for( ; ; ){}是这样的格式，你这里有‘，’而且还多‘i<len;‘。

0

0

阳火锅

我想反问你一下，len是什么东西？

0

0

慕少5768339

把，号改成英文;试试

0

0

楠宝宝_

第一句还差一个var

0

0

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