<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<style>
img {
width: 200px;
height: 200px;
}
div {
position: absolute;
}
</style>
</head>
<body>
<input type="button" value="动起来" id="bt1"/>
<input type="button" value="停止" id="bt2"/>
<div id="dv">
<img src="images/heihei.jpg" alt=""/>
<img src="images/heihei.jpg" alt=""/>
</div>
<script src="common.js"></script>
<script>
//点击按钮动起来
my$("bt1").onclick = function () {
timeId = setInterval(function () {
//随机数
var x = parseInt(Math.random() * 100 + 1);
var y = parseInt(Math.random() * 100 + 1);
my$("dv").style.left = x + "px";
my$("dv").style.top = y + "px";
}, 10);
};
//点击按钮停止
my$("bt2").onclick = function () {
clearInterval(timeId);
};
</script>
</body>
</html>
