abstract：<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title>全選</title> <style type="text/css"> #box{width: 120px;height: 250px;bord
<!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: 5px 10px;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')//獲取全選
item=document.getElementsByName("item[]")//獲取下面的選框
for (var i=0;i<item.length;i++){
if(checkall.checked){
item[i].checked=true//當(dāng)全選框被選中時(shí)下面的勾選框選中
}else{
item[i].checked=false//反之清空
}
}
}
</script>
</head>
<body>
<div id="box">
<div>
<input type="checkbox" id="checkall" onclick="checkAll()"><label for="checkall">全選</label>
</div>
<input type="checkbox" name="item[]" id="item[]">選項(xiàng)1<br>
<input type="checkbox" name="item[]" id="item[]">選項(xiàng)2<br>
<input type="checkbox" name="item[]" id="item[]">選項(xiàng)4<br>
<input type="checkbox" name="item[]" id="item[]">選項(xiàng)5<br>
<input type="checkbox" name="item[]" id="item[]">選項(xiàng)5
</div>
</body>
</html>
Correcting teacher：滅絕師太Correction time：2019-01-03 08:55:44
Teacher's summary：完成的不錯(cuò)，全選是非常常用的小案例，要細(xì)細(xì)掌握奧！