<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>用jQuery實現(xiàn)最簡單的滾屏效果,加了上下按鈕</title>
<style type="text/css">
ul,li{margin:0;padding:0}
#scrollDiv{width:300px;height:100px;min-height:25px;line-height:25px;border:#ccc 1px solid;overflow:hidden}
#scrollDiv li{height:25px;padding-left:10px;}
</style>
<script type="text/javascript" src="jquery-1.6.2.min.js"></script>
<script type="text/javascript">
(function($){
$.fn.extend({
 Scroll:function(opt,callback){
 //參數(shù)初始化
 if(!opt) var opt={};
 var _btnUp = $("#"+ opt.up);//Shawphy:向上按鈕
 var _btnDown = $("#"+ opt.down);//Shawphy:向下按鈕
 var timerID;
 var _this=this.eq(0).find("ul:first");
 var lineH=_this.find("li:first").height(), //獲取行高
  line=opt.line?parseInt(opt.line,10):parseInt(this.height()/lineH,10), //每次滾動的行數(shù)，默認(rèn)為一屏，即父容器高度
  speed=opt.speed?parseInt(opt.speed,10):500; //卷動速度，數(shù)值越大，速度越慢（毫秒）
  timer=opt.timer //?parseInt(opt.timer,10):3000; //滾動的時間間隔（毫秒）
 if(line==0) line=1;
 var upHeight=0-line*lineH;
 //滾動函數(shù)
 var scrollUp=function(){
  _btnUp.unbind("click",scrollUp); //Shawphy:取消向上按鈕的函數(shù)綁定
  _this.animate({
  marginTop:upHeight
  },speed,function(){
  for(i=1;i<=line;i++){
   _this.find("li:first").appendTo(_this);
  }
  _this.css({marginTop:0});
  _btnUp.bind("click",scrollUp); //Shawphy:綁定向上按鈕的點擊事件
  });
 }
 //Shawphy:向下翻頁函數(shù)
 var scrollDown=function(){
  _btnDown.unbind("click",scrollDown);
  for(i=1;i<=line;i++){
  _this.find("li:last").show().prependTo(_this);
  }
  _this.css({marginTop:upHeight});
  _this.animate({
  marginTop:0
  },speed,function(){
  _btnDown.bind("click",scrollDown);
  });
 }
 //Shawphy:自動播放
 var autoPlay = function(){
  if(timer)timerID = window.setInterval(scrollUp,timer);
 };
 var autoStop = function(){
  if(timer)window.clearInterval(timerID);
 };
  //鼠標(biāo)事件綁定
 _this.hover(autoStop,autoPlay).mouseout();
 _btnUp.css("cursor","pointer").click( scrollUp ).hover(autoStop,autoPlay);//Shawphy:向上向下鼠標(biāo)事件綁定
 _btnDown.css("cursor","pointer").click( scrollDown ).hover(autoStop,autoPlay);
 } 
})
})(jQuery);
$(document).ready(function(){
 $("#scrollDiv").Scroll({line:4,speed:500,timer:3000,up:"btn1",down:"btn2"});
});
</script>
</head>
<body>
<p>多行滾動演示：</p>
<div id="scrollDiv">
<ul>
<li><a href="" target="_blank">信言企業(yè)公司建站程序 v1</a></li>
<li><a href="" target="_blank">EPffms 環(huán)保時代ASP家庭財務(wù)管理系統(tǒng) v5.0</a></li>
<li><a href="" target="_blank">jQuery兩幅圖像動畫疊加的效果</a></li>
<li><a href="" target="_blank">Android 滑動提示、菜單及列表等小程序源碼</a></li>
<li><a href="" target="_blank">Maxcms 馬克斯電影視頻系統(tǒng) v4.0</a></li>
<li><a href="" target="_blank">DedeCms v5.7 GBK</a></li>
<li><a href="" target="_blank">DedeCms v5.7 UTF-8</a></li>
<li><a href="" target="_blank">Piwik PHP站點流量統(tǒng)計系統(tǒng) v1.2.1</a></li>
</ul>
</div>
<span id="btn2">向上</span>
<span id="btn1">向下</span>
</body>
</html>

希望本文所述對大家的jquery程序設(shè)計有所幫助。

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