abstract：<!DOCTYPE html><html><head> <meta charset="utf-8"> <title>全選</title> <style type="text/css"> .box{width: 120px;height: 250px;border: 1px
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>全選</title>
<style type="text/css">
.box{width: 120px;height: 250px;border: 1px solid #ccc;border-radius: 5px;margin:20px auto;}
.box div{border-bottom: 1px solid #ccc;padding-bottom: 10px;margin-bottom: 8px;}
.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">全選</label>
</div>
<input type="checkbox" name="item[]">選擇1<br>
<input type="checkbox" name="item[]">選擇2<br>
<input type="checkbox" name="item[]">選擇3<br>
<input type="checkbox" name="item[]">選擇4<br>
<input type="checkbox" name="item[]">選擇5<br>
<input type="checkbox" name="item[]">選擇6<br>
</div>
</body>
</html>
Correcting teacher：滅絕師太Correction time：2019-03-05 13:30:15
Teacher's summary：全選效果在后期使用場景會比較多,要好好掌握!