jquery的全选，全不选，反选:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="jqueryselect.aspx.cs" Inherits="WebApplication9.jqueryselect" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title></title> <script src="Scripts/jquery-1.7.1.js"></script> <script 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>