jquery列表选中并排序

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>jQuery List Selection and Sorting</title>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <style>
        .selected {
            background-color: #fdd;
        }
    </style>
</head>
<body>
    <ul id="list">
        <li>Item 1</li>
        <li>Item 2</li>
        <li>Item 3</li>
        <li>Item 4</li>
    </ul>
    <button id="sort">Sort List</button>

    <script>
        $(document).ready(function() {
            $('#list li').click(function() {
                $(this).toggleClass('selected');
            });

            $('#sort').click(function() {
                var items = $('#list li').get().sort(function(a, b) {
                    return $(a).text().localeCompare($(b).text());
                });
                $.each(items, function(i, item) {
                    $('#list').append(item);
                });
            });
        });
    </script>
</body>
</html>

$('#sort').click(function() {
    var items = $('#list li').get().sort(function(a, b) {
        return $(a).text().localeCompare($(b).text());
    });
    $.each(items, function(i, item) {
        $('#list').append(item);
    });

    // 重新应用选中状态
    $('#list li').each(function() {
        if ($(this).hasClass('selected')) {
            $(this).toggleClass('selected');
        }
    });
});