摘要：<!DOCTYPE html><html><head><meta charset="UTF-8"><title>checkbox</title><style type="text/css">.box{width:120px;height:250px;border:1px so
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>checkbox</title>
<style type="text/css">
.box{
width:120px;
height:250px;
border:1px solid #ccc;
border-radius: 5px;
padding:5px 10px;
margin:20px auto;
}
</style>
</head>
<body>
<script type="text/javascript">
function checkall(){
var checkall,item;
checkall=document.getElementById('checkall');
item=document.getElementsByName('item[]');
for(var i=0;i<item.length;i++){
if(chechkall.checked){
item[i].checked=true;
}else{
item[i].checked=false;
}
}
}
</script>
<div>
<div>
<input type="checkbox" name="" id="checkall"><label for="checkall">全選</label>
</div>
<input type="checkbox" name="item[]">選項(xiàng)1<br>
<input type="checkbox" name="item[]">選項(xiàng)2<br>
<input type="checkbox" name="item[]">選項(xiàng)3<br>
<input type="checkbox" name="item[]">選項(xiàng)4<br>
<input type="checkbox" name="item[]">選項(xiàng)5<br>
</div>
</body>
</html>
批改老師：查無此人批改時(shí)間：2019-05-17 09:14:26
老師總結(jié)：完成的不錯(cuò)。相信你現(xiàn)在對js有一定的了解了，繼續(xù)加油。