滚动条下拉不断获取新内容

来源：互联网发布：读梦里花落知多少有感编辑：程序博客网时间：2024/04/30 11:19

<html>
<head>
<script src="jquery.js" type="text/javascript"></script>
<script type="text/javascript">
function insertcode() {
var data = new Date();
var $body = $("body");
$body.append('<div style=\" height:50px;border:1px solid red; font-size:24px;\">'+data.getSeconds()+'</div>')
$("#page_tag_load").hide();
}
$(document).ready(function () {
$(window).scroll(function () {
var $body = $("body");
var $html = "";
$html += "<br/>" + ($(window).height() + $(window).scrollTop());
$html += "<br/>window.height: " + $(window).height();
$html += "<br/>body.height: " + $body.height();
$html += "<br/>window.scrollTop: " + $(window).scrollTop();
$("#page_tag_bottom").html($html);

/*判断窗体高度与竖向滚动位移大小相加是否超过内容页高度*/
if (($(window).height() + $(window).scrollTop()) >= ($body.height())) {
$("#page_tag_load").show();
setTimeout('insertcode()', 1000);
// insertcode();
}
});
});
</script>
</head>
<body>
<div style="height: 1000px; font-size: 24px;">新增项目</div>
<div id="page_tag_bottom"
style="width: 100%; position: fixed; top: 0px; background-color: #cccccc; height: 100px;"></div>
<div id="page_tag_load"
style="display: none; font-size: 14px; position: fixed; bottom: 0px; background-color: #cccccc; height: 50px;">加载中...</div>
</body>
</html>