全选表单作业

原创2018-12-07 12:52:0827
摘要:<!DOCTYPE html><html><head> <meta charset="utf-8"> <title>全选</title> <style type="text/css"> .box{width:120px;height:250px;border:1px sol

<!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 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')//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;

}else{

item[i].checked=false;

}

}

}

</script>

</head>

<body>

<div class='box'>

<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>

</body>


</html>


批改老师:灭绝师太批改时间:2018-12-07 14:01:26
老师总结:完成的不错,js只要你思路清晰,都不会太难,继续加油!

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