abstract：<!DOCTYPE html><html><head><meta charset="UTF-8"><title>JS案例篇-全選</title><style> .box {width:120px; height: 250px;border: 1px sol
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>JS案例篇-全選</title>
<style>
.box {width:120px; height: 250px;border: 1px solid #ccc; border-radius: 5px;padding: 0px 10px;margin: 20px auto;}
.box div {border-bottom: 1px solid #ccc;padding-bottom: 10px;margin-bottom: 8px;}
.box input {margin: 8px;}
</style>
<script>
function checkAll() {
var checkall,item;
checkall=document.getElementById('checkall') //獲取全選按鈕
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>
<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
</div>
</body>
</html>
Correcting teacher：韋小寶Correction time：2019-02-11 10:14:17
Teacher's summary：寫的很不錯(cuò) 全選在很多的項(xiàng)目中都可以見到 并且還是比較重要的知識