摘要：<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>全选</title> <style type="text/css"> .box{width: 120px;heigh
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>全选</title>
<style type="text/css">
.box{width: 120px;height: 250px;border: 1px solid #ccc;border-radius: 5px;padding: 5px 10px;margin: 20px auto;}
.box div {
border-bottom: 1px solid pink;padding-bottom:10px;margin-bottom: 8px;
}
.box input{
margin: 8px;
}
</style>
</head>
<body>
<div>
<div>
<input type="checkbox" id="checkall"onclick="checkall()">
<label for="checkall">全选</label>
</div>
<input type="checkbox" name="item[]">选项1<br>
<input type="checkbox" name="item[]">选项2<br>
<input type="checkbox" name="item[]">选项3<br>
<input type="checkbox" name="item[]">选项4<br>
<input type="checkbox" name="item[]">选项5<br>
<input type="checkbox" name="item[]">选项6<br>
</div>
<script type="text/javascript">
var checkall,item
function checkall(){
checkall=document.getElementById('checkall')//获取全选
item=document.getElementsByName("item[]")//获取下面的勾选框
for (var i=0;i<item.length;i++) {
if (checkall.checked) {
item[i].checked=true;// 当全选被选中，勾选框全被选
}else{
item[i].checked=false;//fna
}
}
}
</script>
</body>
</html>
批改老师：韦小宝批改时间：2018-11-05 08:59:21
老师总结：代码写的还算完整！但是缺少总结！下次记得把总结加上哈！
