这里 div 中的整个文本都变成了红色。但我只需要更改“条”字颜色
<!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>
<title> new document </title>
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#foo:contains('bar')").css('color','red');
});
</script>
</head>
<body>
<div id="foo">
this is a new bar
</div>
</body>
</html>