JavaScript核心篇—事件
<!DOCTYPE html>
<html><head>
<title>JavaScript核心篇—事件</title>
<meta charset="utf-8"></head>
<body>
<script type="text/javascript">
function a(x){
x.style.background="red"
}
function b(y){
y.style.borderRadius="20px"
}
</script >
姓名：<input type="text" onmouseover="a(this)">
<br><br><br>
<div style="width:120px;height:120px;border:2px solid #ccc;" onclick="b(this)" ></div>
</body>
</html>