abstract：<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>全選</title> <style type="text/css"> .
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>全選</title>
<style type="text/css">
.box{width: 120px;height: 250px;border:1px solid #000;border-radius: 5px;padding: 0px 10px;margin: 20px auto;}
.box div{border-bottom: 1px solid #000;padding-bottom: 10px;margin-bottom: 10px;}
.box input{margin:8px;}
</style>
<script type="text/javascript">
function checkall() {
var checkall,item;
checkall=document.getElementById('checkall') //獲取全選
item = document.getElementsByName("item[]") //獲取下面的選項(xiàng)框
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>
<input type="checkbox" name="item[]">選項(xiàng)6<br>
</div>
</body>
</html>
Correcting teacher：西門大官人Correction time：2019-03-28 10:21:28
Teacher's summary：如果學(xué)習(xí)過(guò)jquery，還可以用jquery更方便的做出全選功能（不需要循環(huán)）