javascript核心篇
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>
javascript核心篇
</title>
</head>
<html>
<body>
<script type="text/javascript">
function myfovus(x){
x.style.background="red"
}
function myclic(y){
y.style.borderRadius="50px"
}
</script>
姓名:<input type="text" onfocus="myyfovus(this)">
<br>
<br>
<div style="width: 100px;height: 100px;border:1px solid #ccc;background: pink;"onclick="myclic(this)"></div>
</body>
</html>