Jquery实现无缝向上循环滚动列表的特效

 <div class="slide-title">  <span>title1</span>  <span>title2</span>  <span>title3</span> </div> <div class="slide-container"><!--css设置时，注意高度是显示多少个item,如：item的高度是30px，显示3个，高度则是 3*30 = 90px -->  <ul class="slide-list js-slide-list">   <li class="odd"><span>item1</span><span>item1</span><span>item1</span></li>   <li class="even"><span>item2</span><span>item2</span><span>item2</span></li>   <li class="even"><span>item2</span><span>item2</span><span>item2</span></li>  </ul> </div>

var doscroll = function(){ var $parent = $('.js-slide-list'); var $first = $parent.find('li:first'); var height = $first.height(); $first.animate({  height: 0 //或者改成： marginTop: -height + 'px'  }, 500, function() {// 动画结束后，把它插到最后，形成无缝  $first.css('height', height).appendTo($parent);  // $first.css('marginTop', 0).appendTo($parent); });};setInterval(function(){doscroll()}, 2000);