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??? 2019-03-24 20:59:22 237
????:<!DOCTYPE html><html><head><meta charset="UTF-8"><title>Document</title><style type="text/css">#box{width:100px;height:200px;border:1px so

<!DOCTYPE html>

<html>

<head>

<meta charset="UTF-8">

<title>Document</title>

<style type="text/css">

#box{

width:100px;

height:200px;

border:1px solid #000;

margin:50px auto;

padding:10px;


}

#box div{

border-bottom:1px solid #000;

padding-bottom:10px;

}

</style>


</head>

<body>

<div id="box">

<div><input type="checkbox" id="checkall" onclick="checkAll();"><label for="checkall">全選</label></div>

<input type="checkbox" name="item"><label>項(xiàng)目1</label><br>

<input type="checkbox" name="item"><label>項(xiàng)目1</label><br>

<input type="checkbox" name="item"><label>項(xiàng)目1</label><br>

<input type="checkbox" name="item"><label>項(xiàng)目1</label><br>

<input type="checkbox" name="item"><label>項(xiàng)目1</label><br>

<input type="checkbox" name="item"><label>項(xiàng)目1</label><br>

</div>

<script type="text/javascript">

    function checkAll(){

     var checkall=document.getElementById('checkall');

     var item=document.getElementsByName('item');

     for(var i=0;i<item.length;i++){

     if(checkall.checked){

     item[i].checked=true;

     }else{

     item[i].checked=false;

     }

     }

    }

</script>


</body>

</html>


?? ???:查無此人?? ??:2019-03-25 09:29:36
???? ??:完成的不錯(cuò)。js操作可以讓頁面動(dòng)起來,你現(xiàn)在應(yīng)該越學(xué)越開心。繼續(xù)加油

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