<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>js定时器</title>
</head>
<body>
</body>
<script>
var p = document.createElement('p');
document.body.append(p)
p.style.width="100px";
p.style.height='100px'
p.style.background="red";
p.style.position="absolute";
p.style.left='0';
p.style.top='0';
var speed = 1;
var timer =setInterval(function () {
speed+=1;
p.style.left=parseInt(p.style.left)+speed+"px";
p.style.top=parseInt(p.style.top)+speed+"px";
if(parseInt(p.style.left)>200 && parseInt(p.style.top)>200){
clearInterval(timer)//停止定时器
}
},30)
</script>
</html>
js运动(定时器)
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转载自blog.csdn.net/qq_39019768/article/details/80413310
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