abstract：<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0">&
<!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>javascript</title>
</head>
<body>
<div style="width:100px;height:100px;background-color:blueviolet;" onclick="change(this);"></div>
</body>
<script>
function change(x){
x.style.borderRadius="50px";
}
</script>
</html>
//使方形变圆形
Correcting teacher：查无此人Correction time：2019-05-07 09:39:54
Teacher's summary：完成的不错。js的动画很难掌握，要坚持。继续加油。