<!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 runat="server">

     <title></title>


     <script src="jquery-1.3.2.min.js" type="text/javascript"></script>


 </head>

 <body>

     <form id="form1" runat="server">

     <div>

         <div>

             <input type="checkbox" name="group" value="我是1" />我是1

             <input type="checkbox" name="group" value="我是2" />我是2

             <input type="checkbox" name="group" value="我是3" />我是3

         </div>

         <p>

         </p>

     </div>

     </form>


     <script type="text/javascript">

         $(document).ready(function() {


             $("input[name=group]").click(function() {

                 var arr = new Array();

                 $("input[name=group]:checked").each(function(key, value) {

                     arr[key] = $(value).val();

                 })

                 //join方法将数组以“，”号为分隔符连接成字符串

                 $("p").text("当前选中" + arr.length + "项，内容是" + arr.join(","));

             });

         });

     </script>


 </body>

 </html>