Jquery特效三:多行滚动显示

    技术2025-08-02  26

    效果图及代码如下:<html xmlns="http://www.w3.org/1999/xhtml"><head runat="server">    <title></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 src="Scripts/jquery-1.4.1.js" type="text/javascript"></script>        <script type="text/javascript">            //滚动插件            (function ($) {                $.fn.extend({                    Scroll: function (opt, callback) {                        //参数初始化                        if (!opt) var opt = {};                        var _this = this.eq(0).find("ul:first");                        var lineH = _this.find("li:first").height(), //获取行高                        line = opt.line ? parseInt(opt.line, 10) : parseInt(this.height() / lineH, 10), //每次滚动的行数,默认为一屏,即父容器高度                        speed = opt.speed ? parseInt(opt.speed, 10) : 500, //卷动速度,数值越大,速度越慢(毫秒)                        timer = opt.timer ? parseInt(opt.timer, 10) : 3000; //滚动的时间间隔(毫秒)                        if (line == 0) line = 1;                        var upHeight = 0 - line * lineH;                        //滚动函数                        scrollUp = function () {                            _this.animate({                                marginTop: upHeight                            }, speed, function () {                                for (i = 1; i <= line; i++) {                                    _this.find("li:first").appendTo(_this);                                }                                _this.css({ marginTop: 0 });                            });                        }                        //鼠标事件绑定                        _this.hover(function () {                            clearInterval(timerID);                        }, function () {                            timerID = setInterval("scrollUp()", timer);                        }).mouseout();                    }                })            })(jQuery);

                $(document).ready(function () {                $("#scrollDiv").Scroll({ line: 4, speed: 500, timer: 1000 });            });</script></head><body>    <form id="form1" runat="server"><p>多行滚动演示:</p><div id="scrollDiv">  <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>  </ul></div>    </form></body></html>

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