abstract：<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewp
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
#div{
width:80px;
height:150px;
border:1px solid #ccc;
margin:5px auto;
}
input{
display:inline-block;
margin:5px;
}
</style>
</head>
<body>
<div id="div">
<input type="checkbox" name="items[]" id="checkAll" onclick="checkAll()"/><label for="checkAll">全选</label><br/>
<input type="checkbox" name="items[]" id="java"/><label for="java">java</label><br/>
<input type="checkbox" name="items[]" id="php"/><label for="php">php</label><br/>
<input type="checkbox" name="items[]" id="html"/><label for="html">html</label><br/>
<input type="checkbox" name="items[]" id="js"/><label for="js">js</label><br/>
<input type="checkbox" name="items[]" id="css"/><label for="css">css</label><br/>
</div>
</body>
<script>
function checkAll(){
var checkAll = document.getElementById('checkAll');
var items = document.getElementsByName('items[]');
for(var i=0; i<items.length; i++){
if(checkAll.checked){
items[i].checked=true;
}else{
items[i].checked=false;
}
}
}
</script>
</html>代码显示效果如下：
Correcting teacher：查无此人Correction time：2019-02-22 09:18:16
Teacher's summary：完成的不错。反选是不是还没完成，下次记得提交反选作业。继续加油。