手机APP上下滚动翻页效果

//页面初期加载时
        $(document).ready(function () {

//加载第一页
            LoadList();

//滚动换页
            $(window).scroll(function () {
                //向上翻页判定
                if ($(document).scrollTop() <= $(window).height()) {
                    console.log("滚动条已经到达顶部为" + $(document).scrollTop());
                    return;
                }

//向下翻页判定
                if ($(document).scrollTop() >= $(document).height() - $(window).height()) {
                    console.log("滚动条已经到达底部为" + $(document).scrollTop());
                    return;
                }

LoadList();
                pageIndex++;
            });