<!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>全选，不全选，反选</title>
<script src="../js/jquery-1.6.2.min.js" type="text/javascript"></script>
<script language="javascript" type="text/javascript">
$(function () {
$("#selectAll").click(function () {//全选
$("#playList :checkbox").attr("checked", true);
});
$("#unSelect").click(function () {//全不选
$("#playList :checkbox").attr("checked", false);
});
$("#reverse").click(function () {//反选
$("#playList :checkbox").each(function () {
$(this).attr("checked", !$(this).attr("checked"));
});
});
});
</script>
</head>
<body>
<div id="playList">
<input type="checkbox" value="歌曲1" />歌曲1<br />
<input type="checkbox" value="歌曲2" />歌曲2<br />
<input type="checkbox" value="歌曲3" />歌曲3<br />
<input type="checkbox" value="歌曲4" />歌曲4<br />
<input type="checkbox" value="歌曲5" />歌曲5<br />
<input type="checkbox" value="歌曲6" />歌曲6
</div>
<input type="button" value="全选" id="selectAll" />
<input type="button" value="全不选" id="unSelect" />
<input type="button" value="反选" id="reverse" />
</body>
</html>