jquery select级联插件

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>jQuery Select Cascade</title>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <script src="js/jquery.selectcascade.min.js"></script>
    <link rel="stylesheet" href="css/jquery.selectcascade.min.css">
</head>
<body>
    <select id="province">
        <option value="">请选择省份</option>
    </select>
    <select id="city">
        <option value="">请选择城市</option>
    </select>
    <select id="district">
        <option value="">请选择区县</option>
    </select>

    <script>
        $("#province").selectCascade({
            source: {
                url: "path/to/provinces.json",
                dataType: "json"
            },
            select: "#city",
            clear: "#district"
        });

        $("#city").selectCascade({
            source: {
                url: "path/to/cities.json",
                dataType: "json"
            },
            select: "#district"
        });
    </script>
</body>
</html>