JavaScript實現複選框全選

[cp]<html lang="en"> javascript

<head> html

<meta charset="UTF-8"> java

<title>Document</title> this

<script type="text/javascript"> htm

window.onload=function(){ ip

} get

function myfunc(chk){ input

var chklist=document.getElementsByName('chkstu'); it

for(var i=0;i<chklist.length;i++){ io

chklist[i].checked=chk.checked;

}

}

</script>

</head>

<body>

<table border="1" width="300" height="200">

<thead>

<tr>

<td><input type="checkbox" id="checkall" onclick="myfunc(this)">全選</td>

<td>學號</td>

<td>姓名</td>

<td>年齡</td>

</tr>

</thead>

<tbody>

<tr>

<td><input type="checkbox" name="chkstu"></td>

<td>1001</td>

<td>張三</td>

<td>18</td>

</tr>

<tr>

<td><input type="checkbox" name="chkstu"></td>

<td>1002</td>

<td>莉莉絲</td>

<td>18</td>

</tr>

<tr>

<td><input type="checkbox" name="chkstu"></td>

<td>1003</td>

<td>薇薇安</td>

<td>18</td>

</tr>

</tbody>

</table>

</body>

</html>[/cp]

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