data存``` 存值取值 ```<!DOCTYPE html> <html lang="en"> <head> <m


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="jquery-3.6.0.js"></script>
</head>
<body>

<input type="button" id="set" value="存值">
<input type="button" id="get" value="取值">

<script>
    $(function () {
        $("#set").bind("click", function () {
            $("body").data("info", "这是一个秘密");
        })

        $("#get").bind("click", function () {
            var info = $("body").data("info");
            alert(info);
        })

    });
</script>
</body>
</html>