摘要：<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>全選</title>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>全選</title>
<style>
.box{width: 120px;height: 220px;border: 1px solid #000;margin: 10px auto;padding: 5px 10px}
.box div{border-bottom: 1px solid #444444;padding-bottom: 8px;margin-bottom: 8px}
input{margin: 6px 10px}
</style>
<script>
function checkAll() {
var checkall=document.getElementById('checkall') //變量獲取id
var one=document.getElementsByClassName('item') //變量獲取class
for(var i=0;i<one.length;i++ ){ //循環(huán)語句
if(checkall.checked){ //判斷checkall是否被勾選
one[i].checked=true //item全選
} else{
one[i].checked=false //否則不
}
}
}
</script>
</head>
<body>
<div class="box">
<div>
<input type="checkbox" id="checkall" onclick="checkAll()"><label for="checkall">全選</label>
</div>
<input type="checkbox" class="item">選項(xiàng)1<br>
<input type="checkbox" class="item">選項(xiàng)2<br>
<input type="checkbox" class="item">選項(xiàng)3<br>
<input type="checkbox" class="item">選項(xiàng)4<br>
<input type="checkbox" class="item">選項(xiàng)5<br>
<input type="checkbox" class="item">選項(xiàng)6<br>
</div>
</body>
</html>
批改老師：查無此人批改時(shí)間：2019-05-05 09:35:49
老師總結(jié)：完成的不錯(cuò)。js每行語句最后增加;號。繼續(xù)加油。