摘要：<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>全選</title> <style type="text/css"> .box{width:120px;height:25
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>全選</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 #000; padding-bottom:10px; margin-bottom:8px;}
.box input{margin:8px;}
</style>
<script type="text/javascript">
function checkAll(){
var checkall, item;
checkall=document.getElementById('checkall');
item=document.getElementsByName("itme[]");
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A<br>
<input type="checkbox" name="item[]">选项B<br>
<input type="checkbox" name="item[]">选项C<br>
<input type="checkbox" name="item[]">选项D<br>
<input type="checkbox" name="item[]">选项E<br>
<input type="checkbox" name="item[]">选项F<br>
</div>
</body>
</html>
批改老师：天蓬老师批改时间：2019-05-25 17:29:40
老师总结：写得代码很工整的, 全选 是这个原理实现的.....
