实现选择一个按钮全部选中

Original 2019-05-25 15:15:05 157
abstract:<!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>


Correcting teacher:天蓬老师Correction time:2019-05-25 17:29:40
Teacher's summary:写得代码很工整的, 全选 是这个原理实现的.....

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