js 下拉滚动条

window.addEventListener('scroll', function() {
    // 处理滚动事件
});

var element = document.getElementById('myElement');
element.addEventListener('scroll', function() {
    // 处理滚动事件
});

window.addEventListener('scroll', function() {
    var scrollTop = window.pageYOffset || document.documentElement.scrollTop;
    var scrollHeight = document.documentElement.scrollHeight;
    var clientHeight = document.documentElement.clientHeight;

    console.log('当前滚动位置：', scrollTop);
    console.log('内容总高度：', scrollHeight);
    console.log('可视区域高度：', clientHeight);
});

window.addEventListener('scroll', function() {
    var scrollTop = window.pageYOffset || document.documentElement.scrollTop;
    var scrollHeight = document.documentElement.scrollHeight;
    var clientHeight = document.documentElement.clientHeight;

    if (scrollTop + clientHeight >= scrollHeight - 10) { // 接近底部时加载更多内容
        loadMoreContent();
    }
});

function loadMoreContent() {
    // 加载更多内容的逻辑
}