abstract：<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>控制改变div样式</title> <style> .conent{width: 100px;height:210px;border:1px&nb
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>控制改变div样式</title>
<style>
.conent{width: 100px;height:210px;border:1px solid gray;border-radius: 10px;padding: 5px 10px;margin:20px auto;}
.conent div{ height: 20px;line-height: 20px; }
.conent 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>
<div> <input type="checkbox" id="checkall" onclick="checkAll()"><label for="checkall">全选</label></div>
<hr>
<input type="checkbox" name="item[]">选项一<br>
<input type="checkbox" name="item[]">选项二<br>
<input type="checkbox" name="item[]">选项三<br>
<input type="checkbox" name="item[]">选项四<br>
<input type="checkbox" name="item[]">选项五<br>
<input type="checkbox" name="item[]">选项六<br>
</div>
</div>
</body>
</html>