JavaScript实现走马灯效果,下 上 左 右无缝连接、循环滚动

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<!-- 指向链接图片的URL --> <div align="center" id="demo" style="overflow:hidden;height:100px;border-width:1px 1px 1px 1px;border-style:dotted dotted dotted dotted;"> <div id="demo1"> <!-- 定义内容--> <a href="#">1 一</a><br> 2 二<br> 3 三<br> 5 四<br> 6 五<br> 4 六<br> <!-- 定义内容 end--> </div> <div id="demo2"></div> </div> <script language="javascript" type="text/javascript"> <!-- var demo = document.getElementById("demo"); var demo1 = document.getElementById("demo1"); var demo2 = document.getElementById("demo2"); var speed=30; //数值越大滚动速度越慢 demo2.innerHTML = demo1.innerHTML; demo.scrollTop = demo.scrollHeight+'px'; function Marquee(){ /*向下的无缝循环滚动 if(demo1.offsetTop-demo.scrollTop>=0) demo.scrollTop+=demo2.offsetHeight else{ demo.scrollTop-- } */ /*向下的无缝循环滚动 if(demo2.offsetTop-demo.scrollTop<=0) //当滚动至demo1与demo2交界时 demo.scrollTop-=demo1.offsetHeight //demo跳到最顶端 else{ demo.scrollTop++ } */ /*向左的无缝循环滚动 if(demo2.offsetWidth-demo.scrollLeft<=0) demo.scrollLeft-=demo1.offsetWidth else{ demo.scrollLeft++ } */ /*向右的无缝循环滚动 if(demo.scrollLeft<=0) demo.scrollLeft+=demo2.offsetWidth else{ demo.scrollLeft-- } */ } var MyMar = setInterval(Marquee,speed); demo.onmouseover = function(){clearInterval(MyMar)} demo.onmouseout = function(){MyMar = setInterval(Marquee,speed)} --> </script>

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