在checkbox选中的状态下给父级span添加类sel

<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>拖拽</title>
<script src="js/jquery.min.js"></script>
<style type="text/css">

form table{width:100%; text-align: center}
form table th{ line-height: 50px; vertical-align: middle;}
form table td{color: #000;font-size: 12px; line-height: 50px; vertical-align: middle;}
form table thead td{color: #8d8d8d; }
form table td span{width:18px; height:18px; border-radius: 4px; border:1px solid #d5d5d5;background-color: #fff;display: inline-block;box-sizing: border-box;vertical-align: middle;position:relative;}
form table td span.sel{border:1px solid #2cb5ec;}
form table td span.sel i{background-color: #2cb5ec; width:8px;height:8px; background-color: #2cb5ec;border-radius: 4px;display: inline-block;vertical-align: top;margin-top: 2px;}
form table td span input[type="checkbox"]{width:20px;height:20px;position:absolute;opacity:0.5;top:-5px;left:-5px;}
form table tbody td:nth-child(2){position: relative;}
form table tbody td:nth-child(2) div{display:none; position: absolute;width:100px;height:100px; border:1px solid #e7e7e7;top:-30px; left:90px; box-shadow: 0 0 10px 0px rgba(209,211,210,0.5); background-color: #fff;}
form table tbody td:nth-child(2) div img{width: 100px;}
form table tbody td:nth-child(2):hover div{display: block;}
form .list_table table tr:hover td{background-color:#e9f4ff; }
form .list_table table thead tr:hover td{background-color:none; }
.search table tr td input[type="text"]{width:140px;}
</style>
<script type="text/javascript">
$(function () {

        $("table tr>td:first-child span").click(function(){
            $(this).toggleClass("sel");
        });


//全选或全不选
            $("thead input").click(function(){
                if(this.checked){
                    $("tbody :checkbox").prop("checked", true);
                }else{
                    $("tbody :checkbox").prop("checked", false);
                }
            });
            //设置全选复选框
            $("tbody :checkbox").click(function(){
                allchk();
            });
            function allchk(){
                var chknum = $("tbody   :checkbox").size();//选项总个数
                var chk = 0;
                $("tbody   :checkbox").each(function () {
                    if($(this).prop("checked")==true){
                        chk++;
                    }
                });
                if(chknum==chk){//全选
                    $("thead input").prop("checked",true);
                }else{//不全选
                    $("thead input").prop("checked",false);
                }
            }

})
</script>
</head>
<body>
<form>
    <table>
        <thead>
            <tr>
                <td><span><i></i><input type="checkbox" name="1" id="all"></td>
                <td></td>
                <td>允许收银</td>

                <td>允许收银</td>
            </tr>
        </thead>
        <tbody id="list">
            <tr>
                <td><span><i></i><input type="checkbox" name="2"></span></td>
                <td>允许收银</td>
                <td>允许收银</td>

                <td>允许收银</td>
            </tr>
             <tr>
                <td><span><i></i><input type="checkbox" name="3"></span></td>
                <td>允许收银</td>
                <td>允许收银</td>

                <td>允许收银</td>
            </tr>
            <tr>
                <td><span><i></i><input type="checkbox" name="4"></span></td>
                <td>允许收银</td>
                <td>允许收银</td>

                <td>允许收银</td>
            </tr>
             <tr>
                <td><span><i></i><input type="checkbox" name="5"></span></td>
                <td>允许收银</td>
                <td>允许收银</td>

                <td>允许收银</td>
            </tr>
        </tbody>
      </table>
</form>
</body>
</html>

qq__8222

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在checkbox选中的状态下给父级span添加类sel

2回答