jquery控制滚动条

$(document).ready(function() {
    $('button').click(function() {
        $('html, body').animate({
            scrollTop: $('#target').offset().top
        }, 1000);
    });
});

$(document).ready(function() {
    $('a[href^="#"]').on('click', function(event) {
        if (this.hash !== "") {
            event.preventDefault();
            var hash = this.hash;
            $('html, body').animate({
                scrollTop: $(hash).offset().top
            }, 800, function() {
                window.location.hash = hash;
            });
        }
    });
});

$(window).scroll(function() {
    if ($(this).scrollTop() > 100) {
        $('#navbar').addClass('fixed');
    } else {
        $('#navbar').removeClass('fixed');
    }
});

<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>

$(window).on('scroll', function() {
    console.log('Scrolling...');
});