<a href="http://www.abc.com/1000" target="_blank"><img alt="新款" src="http://www.abc.com/imgs/20110215101710.jpg" title="新款"/></a>如何用正则取a元素中的href,img中的alt,src,title值？
<a href="http://www.abc.com/1000" target="_blank"><img alt="新款" src="http://www.abc.com/imgs/20110215101710.jpg" title="新款"/></a>如何用正则取a元素中的href,img中的alt,src,title值？
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<script type="text/javascript">
var html = '<a href="http://www.abc.com/1000" target="_blank"><img alt="新款" src="http://www.abc.com/imgs/20110215101710.jpg" title="新款"/></a>';
var reg = /\s(\w+)="([^"]+)"/g;
while(reg.exec(html))
alert(RegExp.$1+"\r\n"+RegExp.$2);
</script>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head>
<body>
<script type="text/javascript">
var html = '<a href="http://www.abc.com/1000" target="_blank"><img alt="新款" src="http://www.abc.com/imgs/20110215101710.jpg" title="新款"/></a>';
var reg = /<a href=\"([^\"]+)\"[^>]+><img alt=\"([^\"]+)\" src=\"([^\"]+)\" title=\"([^\"]+)\"\/><\/a>/;alert(reg.test(html))
alert(RegExp.$1+"\r\n"+RegExp.$2+"\r\n"+RegExp.$3+"\r\n"+RegExp.$4);
</script>
</body>
</html>
<head>
<title></title>
<script type="text/javascript" src="script/jquery-1.3.2.min.js"></script>
</head>
<body>
<a href="http://www.abc.com/1000" target="_blank"><img alt="New1" src="http://www.abc.com/imgs/20110215101710.jpg" title="New11"/></a>
<a href="http://www.abc.com/1001" target="_blank"><img alt="New2" src="http://www.abc.com/imgs/20110215101711.jpg" title="New22"/></a>
<a href="http://www.abc.com/1002" target="_blank"><img alt="New3" src="http://www.abc.com/imgs/20110215101712.jpg" title="New33"/></a>
<a href="http://www.abc.com/1003" target="_blank"><img alt="New4" src="http://www.abc.com/imgs/20110215101713.jpg" title="New44"/></a>
<a href="http://www.abc.com/1004" target="_blank"><img alt="New5" src="http://www.abc.com/imgs/20110215101714.jpg" title="New55"/></a>
<a href="http://www.abc.com/1005" target="_blank"><img alt="New6" src="http://www.abc.com/imgs/20110215101715.jpg" title="New66"/></a>
<a href="http://www.abc.com/1006" target="_blank"><img alt="New7" src="http://www.abc.com/imgs/20110215101716.jpg" title="New77"/></a>
</body>
<script type="text/javascript">
$('a').each(function() {
var ahref = $(this).attr('href');
var imgAlt = $(this).children().eq(0).attr('alt');
var imgScr = $(this).children().eq(0).attr('src');
var imgTitle = $(this).children().eq(0).attr('title');
alert(ahref);
alert(imgAlt);
alert(imgScr);
alert(imgTitle);
});
</script>
</html>
{
var str = '<a href="http://www.abc.com/1000" target="_blank"><img alt="新款" src="http://www.abc.com/imgs/20110215101710.jpg" title="新款"/></a>'
var regexStr = key + "=(\'|\")(.+?)\\1";
var regex = new RegExp(regexStr,"i")
if(regex.test(str))
return RegExp.$2
return null;
}
var href = getAttribute("alt")
var alt = getAttribute("alt")
var src = getAttribute("src")
var title = getAttribute("title")