<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<p id="paomadeng"></p>
</body>
</html>
<script>
var str = 'Hello world!';
function zifuchuan(){
var first = str.slice(0,1);
var last = str.slice(1,str.length);
str = last + first;
console.log(str);
paomadeng.innerHTML = str;
}
setInterval(zifuchuan,500);
</script>
跑马灯
发布于 2021-09-17 440 次阅读
Comments NOTHING