abstract：<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, in
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<script>
function myfovus(x){
x.style.background='yellow'
}
function onlick(y){
y.style.borderRadius="50px"
}
</script>
姓名：<input type="text" onfocus="myfovus(this)">
<br>
<br>
<div style="width: 200px;height: 200px;border:1px solid black" onclick="onlick(this)"></div>
</body>
</html>
Correcting teacher：天蓬老师Correction time：2019-08-19 09:35:07
Teacher's summary：通过属性添加事件, 并不符合dom2标准, 推荐使用addEventListner