abstrak：<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0">&
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>全選</title>
<style type="text/css">
.box{width: 100px;height: 200px;border: 1px solid #ccc;border-radius: 6px; margin:20px auto;}
.box div{border: 1px solid #aaa;border-radius: 6px; margin:20px auto;}
.box input{border: 1px solid #fff;border-radius: 6px; margin:20px auto;}
</style>
<script type="text/javascript">
function checkall(){
var checkall,item;
checkall=document.getElementById("check_all");
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>
<body>
<div class="box"></div>
<div>
<input type="checkbox" id="check_all" onclick="checkall()"><label for="check_all">全選</label>
<input type="checkbox" name="item[]">選 1<br>
<input type="checkbox" name="item[]">選 2<br>
<input type="checkbox" name="item[]">選 3<br>
<input type="checkbox" name="item[]">選 4<br>
<input type="checkbox" name="item[]">選 5 <br>
<input type="checkbox" name="item[]">選 6<br>
</div>
</body>
</html>
Guru membetulkan：查無此人Masa pembetulan：2019-05-22 09:16:01
Rumusan guru：完成的不錯。如果是商城的購物車，全選還要統(tǒng)計(jì)商品總價(jià)。繼續(xù)加油。