摘要： <!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>全选</title>
<style ty
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>全选</title>
<style type="text/css">
.box{width: 120px;height: 200px;border: 2px solid #000; border-radius:5px;margin: 0px auto;padding: 10px;}
.box div{border-bottom: 2px solid #000;padding-bottom: 10px;}
.box input{margin: 8px;}
</style>
<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 (checkall.checked) {
item[i].checked=true;
}else{
item[i].checked=false;
}
}
}
</script>
</head>
<body>
<div class="box">
<div>
<input type="checkbox" id="checkall" onclick="checkAll()"><label for="checkall">全选</label>
</div>
<input type="checkbox" name="item[]">选项1<br>
<input type="checkbox" name="item[]">选项2<br>
<input type="checkbox" name="item[]">选项3<br>
<input type="checkbox" name="item[]">选项4<br>
<input type="checkbox" name="item[]">选项5<br>
<input type="checkbox" name="item[]">选项6<br>
</div>
</body>
</html>
