l老师看下代码谢谢

来源：1-25 编程练习

21seu

2019-12-01 00:05:20

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style type="text/css">
div{
width:200px;
height:200px;
line-height:200px;
border:2px solid gray;
text-align:center;
color:red;
}
</style>
</head>
<body>
<h3>会闪烁的文字</h3>
<div id="text">☆☆☆今日特卖☆☆☆</div>
<script type="text/javascript">
//补充代码
var div = document.getElementById("text");
var changeing = 0;
var timer = setInterval(function () {
if (changeing == 0){
div.innerHTML = "★★★今日特卖★★★";
changeing++;
console.log("实心："+changeing);
}else{
div.innerHTML = "☆☆☆今日特卖☆☆☆";
changeing--;
console.log("空心："+changeing);
}
},500)
</script>
</body>
</html>