jquery取checkbox选中的值

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

 <head>

  <title> New Document </title>

  <meta name="Generator" content="EditPlus">

  <meta name="Author" content="">

  <meta name="Keywords" content="">

  <meta name="Description" content="">

 </head>

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

    <script type="text/javascript">



        function go() {

            var str="";

            $("input[name='checkbox']:checkbox").each(function(){ 

                if($(this).attr("checked")){

                    str += $(this).val()+","

                }

            })

            //alert(str);

            str.split(",");

            alert(str[0]);

        }

    </script>

 <body>

  <div>

    <input type="text" id="content" value="111"/>

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

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

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

    <input type="checkbox" name="checkbox" value="4"/>

    <input type="checkbox" name="checkbox" value="5"/>

    <input type="button" id="test" onclick="go();"/>

  </div>

 </body>

</html>

 

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