<!DOCTYPE html>
<html>
<head>
<title>鼠标光标</title>
<style>
.mouse{
width: 100px;
height: 100px;
border:1px solid red;
padding-top: 50px;
background-color: red;
text-align: center;
}
</style>
</head>
<body>
<div class="mouse" onmouseover ="over(this)" onmouseout="out(this)">click on me!</div>
<script type="text/javascript">
function over(obj){
obj.innerHTML="thank you!";
}
function out(obj){
obj.innerHTML="click on me!";
}
</script>
</body>
</html>几个注意点：
1、只更改内容不更改样式。obj.innerHTML(更改元素内容)
2、光标移入移出：onmouseover(),onmouseout()