<!DOCTYPE HTML>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<title></title>
<script src="../jquery.js" type="text/javascript"></script>
<script type="text/javascript">
$(function(){
$("input[type=‘button‘]").click(function(){
var i = 0;
$("input[type=‘text‘]").each(function(){
i += parseInt($(this).val());
});
$(‘label‘).text(i);
});
$(‘input:lt(2)‘)
.add(‘label‘)
.css(‘border‘, ‘none‘)
.css(‘borderBottom‘, ‘solid 1px navy‘)
.css({‘width‘:‘30px‘});
});
</script>
</head>
<body>
<input type="text" value="1" />+
<input type="text" value="2" />
<input type="button" value="=" />
<label> </label>
</body>
</html>
jquery选择器
原文：http://www.cnblogs.com/yhdsir/p/4650787.html
