;(function($) { $.fn.textSlider = function(settings) { settings = jQuery.extend({ speed: "normal", line: 2, timer: 1000 }, settings); return this.each(function() { $.fn.textSlider.scllor($(this), settings); }); }; $.fn.textSlider.scllor = function($this, settings) { var ul = $("ul:eq(0)", $this); var timerID; var li = ul.children(); var _btnUp = $(".up:eq(0)", $this); var _btnDown = $(".down:eq(0)", $this); var liHight = $(li[0]).height(); var upHeight = 0 - settings.line * liHight; var scrollUp = function() { _btnUp.unbind("click", scrollUp); ul.animate({marginTop: upHeight}, settings.speed, function() { for (i = 0; i < settings.line; i++) { ul.find("li:first").appendTo(ul); } ul.css({marginTop: 0}); _btnUp.bind("click", scrollUp); }); }; var scrollDown = function() { _btnDown.unbind("click", scrollDown); ul.css({marginTop: upHeight}); for (i = 0; i < settings.line; i++) { ul.find("li:last").prependTo(ul); } ul.animate({marginTop: 0}, settings.speed, function() { _btnDown.bind("click", scrollDown); }); }; var autoPlay = function() { timerID = window.setInterval(scrollUp, settings.timer); }; var autoStop = function() { window.clearInterval(timerID); }; ul.hover(autoStop, autoPlay).mouseout(); _btnUp.css("cursor", "pointer").click(scrollUp); _btnUp.hover(autoStop, autoPlay); _btnDown.css("cursor","pointer").click(scrollDown); _btnDown.hover(autoStop, autoPlay); }; })(jQuery);
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> <style> *{margin:0;padding:0;} .scrollText{width:300px;height:100px;overflow:hidden;border:#ccc 1px solid;line-height:25px;} .up{width:50px;height:50px;background:#f90;cursor:pointer;} .down{width:50px;height:50px;background:#960;cursor:pointer;} </style> <script src="jquery-1.5.2.min.js"></script> <script src="jQuery.textSlider.js"></script> </head> <body> <p>一行滚动演示：</p> <div id="scrollDiv"> <div class="scrollText"> <ul> <li>这是公告标题的第一行</li> <li>这是公告标题的第二行</li> <li>这是公告标题的第三行</li> <li>这是公告标题的第四行</li> <li>这是公告标题的第五行</li> <li>这是公告标题的第六行</li> <li>这是公告标题的第七行</li> <li>这是公告标题的第八行</li> <li>这是公告标题的第9行</li> <li>这是公告标题的第10行</li> <li>这是公告标题的第11行</li> <li>这是公告标题的第12行</li> </ul> </div> <div class="up">up</div> <div class="down">down</div> </div> <p>多行滚动演示：</p> <div id="scrollDiv2"> <div class="scrollText"> <ul> <li>这是公告标题的第一行</li> <li>这是公告标题的第二行</li> <li>这是公告标题的第三行</li> <li>这是公告标题的第四行</li> <li>这是公告标题的第五行</li> <li>这是公告标题的第六行</li> <li>这是公告标题的第七行</li> <li>这是公告标题的第八行</li> <li>这是公告标题的第9行</li> <li>这是公告标题的第10行</li> <li>这是公告标题的第11行</li> <li>这是公告标题的第12行</li> </ul> </div> <div class="up">up</div> <div class="down">down</div> </div> <script> $(document).ready(function() { $("#scrollDiv").textSlider({line: 1, speed: 500, timer: 3000}); $("#scrollDiv2").textSlider({line: 2, speed: 500, timer: 3000}); }); </script> </body> </html>
原文：http://www.cnblogs.com/jzm17173/p/3539098.html