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获取页面所有链接

2013-01-31 17:43 211 查看
<html xmlns="http://www.w3.org/1999/xhtml" >

<head>

<title>获取页面所有链接</title>

<script language="JavaScript1.2">

function extractlinks()

{

var links=document.all.tags("A") //获取所有a元素

var total=links.length //a元素的个数

var win2=window.open("","","menubar,scrollbars,toolbar")

//在新窗口中显示所有链接

win2.document.write("<font size='2'>一共有"+total+"个连接</font><br>")

for (i=0;i<total-1;i++){

win2.document.write("<font size='2'>"+links[i].outerHTML+"</font><br>")}

}

</script>

</head>

<body>

<p align="center">

<a href="http://www.youweishop.com/" OLDREF="http://www.youweishop.com/">有为商城</a>

<a href="http://www.youweishop.com/index.php?app=store&act=search&id=660&cate_id=2360" OLDREF="http://www.youweishop.com/index.php?app=store&act=search&id=660&cate_id=2360">男女服饰</a>

<a href="http://www.youweishop.com/index.php?app=store&act=search&id=660&cate_id=2361" OLDREF="http://www.youweishop.com/index.php?app=store&act=search&id=660&cate_id=2361">美容美状
</a>

<a href="http://www.youweishop.com/index.php?app=store&act=search&id=660&cate_id=2363" OLDREF="http://www.youweishop.com/index.php?app=store&act=search&id=660&cate_id=2363">母婴用品</a>

<a href="http://www.youweishop.com/index.php?app=store&act=search&id=660&cate_id=2362" OLDREF="http://www.youweishop.com/index.php?app=store&act=search&id=660&cate_id=2362">保健食品</a>

<a href="http://www.youweishop.com/index.php?app=store&act=search&id=660&cate_id=2364" OLDREF="http://www.youweishop.com/index.php?app=store&act=search&id=660&cate_id=2364">3C数码</a>

<a href="http://www.youweishop.com/index.php?app=store&act=search&id=660&cate_id=2366" OLDREF="http://www.youweishop.com/index.php?app=store&act=search&id=660&cate_id=2366">箱包鞋帽</a>
</p>

<input type="button" onClick="extractlinks()" value="显示所有的连接">

获取页面中的所有链接，使用“document.all.tags("A")”，“tag”表示页面中的标记，链接的标记是“A”。判断链接的个数，使用“links.length”。

</body>

</html>

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