jquery插件之無縫循環新聞列表

一、效果圖：

??? tips源碼下載：http://files.cnblogs.com/waitingbar/newslist.rar

二、jquery源碼:

(function($){$.fn.extend({newsList:function(options){var defaults ={actName:'li',          //顯示條數名；maxShowNum:'6',       //最多的顯示條數；actNameH:'28',       //一次移動的距離；ulClass:'.ul_news_list',           //被復制層的classcopyUlClass:'.ul_news_list2',     //復制層的classautoTime:'1500',  //自動運行時間；clickGoUpC:'.go_uplist',        //點擊向上class; clickDownUpC:'.go_downlist',   //點擊向下class; goStart:'go_tart',autoCloss:'flase'    //自動運行開關,當為'flase'時為開，其它則關；} ;options = $.extend(defaults, options);return this.each(function(){var o = options;var counts =1;var linum = $($(this).find(o.actName),$(this)).size();var ul_class = $($(this).find(o.ulClass),$(this));var copy_ul_class = $($(this).find(o.copyUlClass),$(this));var click_go_up_c = $($(this).find(o.clickGoUpC),$(this));var click_go_down_C = $($(this).find(o.clickDownUpC),$(this));var go_start = $($(this).find(o.goStart),$(this));if(linum > o.maxShowNum){$(copy_ul_class).html($(ul_class).html());goStartList();}var thiswrap = $($(ul_class).parent().parent(),$(this));//自動運行函數function auto_function(){if(counts <= linum){$(ul_class).animate({top:'-=' + o.actNameH},o.autoTime);$(copy_ul_class).animate({top:'-=' + o.actNameH},o.autoTime);counts++;}else{$(ul_class).animate({top:0},0);$(copy_ul_class).animate({top:0},0);counts = 1;    }}//點擊向上移動時；if(linum > o.maxShowNum){$(click_go_up_c).click(function(){if(counts <= linum){$(ul_class).animate({top:'-=' + o.actNameH},0);$(copy_ul_class).animate({top:'-=' + o.actNameH},0);counts++;}else{$(ul_class).animate({top:0},0);$(copy_ul_class).animate({top:0},0);counts = 1;}});}//點擊向下移動時；if(linum > o.maxShowNum){$(click_go_down_C).click(function(){if(counts > 1){counts--;$(ul_class).animate({top:'-'+ counts*o.actNameH},0);$(copy_ul_class).animate({top:'-'+ counts*o.actNameH},0);}else{$(ul_class).animate({top:0},0);$(copy_ul_class).animate({top:0},0);counts = linum+1;}});}//鼠標經過所發生的開始停止；if(linum > o.maxShowNum){$(thiswrap).hover(function(){goStopList();},function(){goStartList();});}function goStartList(){if(o.autoCloss === 'flase'){go_start = setInterval(auto_function,o.autoTime);}}function goStopList(){clearInterval(go_start);}});}});
}(jQuery));

三、HTML:

<script language="javascript">
$(document).ready(function(){
??? $("#newslist").newsList();
});
</script>

<div id="newslist">
????? <div class="go_upanddown"><span class="go_uplist"><img src="images/newslist/goupbtn.gif" /></span><span class="go_downlist"><img src="images/newslist/godownbtn.gif" /></span></div>
??? <div class="news_list_bar">
?????? <ul class="ul_news_list">
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????????? <li><a href="#">3、昆明警方近日縣的“洪興甸縣的“洪興甸縣的“洪興甸縣的“洪興幫”黑惡勢力團伙，繳獲...</a></li>
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????????? <li><a href="#">5、明昆明警方近日搗毀了尋甸縣的“洪興幫”黑惡勢力團伙，繳獲...</a></li>
????????? <li><a href="#">6、曾參加過唐曾參加過唐曾參加過唐曾參加過唐</a></li>
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????? </ul>
?????? <ul class="ul_news_list2"></ul>
? </div>
</div>

四、CSS:

body { font-family:"微軟雅黑",Arial,"Lucida Grande", Verdana, Lucida; font-size:12px; }
*{ padding:0; margin:0;}
img { border:0;}
.clear { clear:both;}
a { color:#000; text-decoration:none;}
a:hover { color:#EC6104;? text-decoration:none;}
.undis { display:none;}/*news_list*/
.news_list_bar { position:relative;? width:560px; height:168px; overflow:hidden; background:url(../images/slideshow2/v3_picture6.gif) repeat-y; background-color:#F00;}
.ul_news_list,
.ul_news_list2{ position:relative; list-style:none;}
.ul_news_list li,
.ul_news_list2 li{line-height:28px;? height:28px; width:500px; overflow:hidden; white-space:nowrap;padding:0 20px;}
.ul_news_list li a,
.ul_news_list2 li a{ padding-right:20px;}
.go_upanddown { position:absolute; margin:-20px 0 0 500px;}
.go_upanddown span { padding-right:10px; cursor:pointer;}