1-25 编程练习作业提交

来源：1-25 编程练习

MiMicccc

2020-10-12 15:28:01

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>闪烁的文字</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"> </div>
    <script type="text/javascript">
        //补充代码
        var twinkle = 0;
        var box = document.getElementById("text");
        setInterval(function () {
            if (twinkle == 0) {
                box.innerHTML = "★★★今日特卖★★★";
                twinkle = 1;
            } else {
                box.innerHTML = "☆☆☆今日特卖☆☆☆";
                twinkle = 0;
            }
        }, 500) 
    </script>
</body>
</html>

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