var $check_checked =$("input:checkbox[name=check]:checked'");

 

<!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></title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <!--   引入jQuery -->
 <script src="../../scripts/jquery.js" type="text/javascript"></script>

<script type="text/javascript">
$(function(){//页面所有元素加载完毕

    var $btn=$("#btn");
    $btn.click(function(){                   //给元素添加onclick事件

        var $items = $("[name=check]");  //获取name为check的一组元素(checkbox)

        alert( "check个数为："+$items.length + " ; typeof $items : "+ typeof($items));

        var $items_checked = $(":checked");

        alert( "选中的个数为："+ $items_checked.length  );

        var $check_checked =$("input:checkbox[name=check]:checked'");
        alert( "[name=check]选中的个数为："+ $check_checked.length  );

    });

});
</script>
</head>
<body>
<form method="post" action="#">
    <input type="checkbox" value="1" name="check" checked="checked"/>
    <input type="checkbox" value="2" name="check" />
    <input type="checkbox" value="3" name="check" checked="checked"/>
    <input type="checkbox" value="4" name="noName" checked="checked"/>
    <input type="button" value="你选中的个数" id="btn"/>
</form>
</body>
</html>
 jquery 获取所有的 checkbox 值    .
http://blog.csdn.net/tengdazhang770960436/article/details/37594691

2014-07-09 11:17 15946人阅读 评论(2) 收藏 举报 
.




[html] view plain copy 
01.<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  
02.<html>  
03.<head>  
04.    <meta charset="utf-8">  
05.    <script type="text/javascript" src="jquery-1.7.2.min.js"></script>  
06.    <script type="text/javascript">  
07.  
08.    function getCheckAdIds() {  
09.        var adIds = "";  
10.        $("input:checkbox[name=check_name]:checked'").each(function(i){  
11.            if(0==i){  
12.                adIds = $(this).val();  
13.            }else{  
14.                adIds += (","+$(this).val());  
15.            }  
16.        });  
17.        alert(adIds);  
18.        return adIds;  
19.    }  
20.    </script>  
21.</head>  
22.<body>  
23.  
24.    <input name="check_name" type="checkbox" value="1"/>1  
25.    <input name="check_name" type="checkbox" value="2"/>2  
26.    <input name="check_name" type="checkbox" value="3"/>3  
27.    <input name="check_name" type="checkbox" value="4"/>4  
28.    <input name="check_name" type="checkbox" value="5"/>5  
29.    <input name="check_name" type="checkbox" value="6"/>6<br/>  
30.  
31.    <button onclick="getCheckAdIds()">获取选中结果</button>  
32.  
33.</body>  
34.</html>

 

posted @ 2017-10-18 10:17  sky20080101  阅读(189)  评论(0)    收藏  举报