1.marquee实现文字移动：
<marquee width="220px;" scrollamount="5" onmouseover="this.stop()" onmouseout="this.start()" ><p style="letter-spacing:2px;width: 1px;">欢迎您登录拜博医疗口腔集团内部网</p></marquee>
2.js+div实现文字无缝平滑移动：
<p id="scrollobj" style="white-space:nowrap;overflow:hidden;width:400px;margin: auto;" onmouseover="stop()" onmouseout="start()"><span style="padding-left: 210px;">欢迎您登录拜博医疗口腔集团内部网</span></p><script>function scroll(obj) {var tmp = (obj.scrollLeft)++;//当滚动条到达右边顶端时if (obj.scrollLeft==tmp) obj.innerHTML += obj.innerHTML;//当滚动条滚动了初始内容的宽度时滚动条回到最左端if (obj.scrollLeft>=obj.firstChild.offsetWidth) obj.scrollLeft=0;}var a = setInterval("scroll(document.getElementById('scrollobj'))",20);function stop(){clearInterval(a);}function start(){a=setInterval("scroll(document.getElementById('scrollobj'))",30);}</script>
