摘要：<!DOCTYPE html><html><head> <meta charset="UTF-8"> <title>Document</title> <style type="text/css"> .box{w
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
.box{width: 100px;height: 250px;border: 1px solid #000;padding: 0px 1px; margin:20px auto; }
.box div{width: 98%;border: 1px solid #ccc;padding-bottom: 10px;;margin-bottom: 6px}
.box input{margin: 8px}
</style>
<script type="text/javascript">
function checkAll(){
var checkALL,itm;
checkALL=document.getElementById('chackAll');
itm=document.getElementsByName('itm');
for (var i = 0;i<=itm.length - 1; i++) {
if(checkALL.checked){
itm[i].checked=true;
}
else{
itm[i].checked=false;
}}
}
</script>
</head>
<body>
<div>
<div>
<input type="checkbox" id="chackAll" onclick="checkAll()"><label for="chackAll">全选</label>
</div>
<input type="checkbox" name="itm">选项1
<input type="checkbox" name="itm">选项2
<input type="checkbox" name="itm">选项3 </div>
</body>
</html>
批改老师：灭绝师太批改时间：2018-11-14 09:09:39
老师总结：嗯！完全自己写一次的习惯要保持，这样有便于自己掌握
