有什么问题请到评论中发表<br> <!-- http://www.mb5u.com/ --> <!-- http://wWw.mb5u.com/ --> <!--要完成此效果需要两个步骤 第一步:把如下代码加入到<head>区域中--> <SCRIPT language=\"JavaScript\"> <!-- function scrollit(seed) { var m1 = \"HI:你 好! \"; var m2 = \"欢 迎 访 问 网 页 教 学 网\"; var m3 = \"请 多 提 意 见,谢 谢! \"; var msg=m1+m2+m3; var out = \" \"; var c = 1; if (seed > 100) { seed--; cmd=\"scrollit(\"+seed+\")\"; timerTwo=window.setTimeout(cmd,100); } else if (seed <= 100 && seed > 0) { for (c=0 ; c < seed ; c++) { out+=\" \"; } out+=msg; seed--; window.status=out; cmd=\"scrollit(\"+seed+\")\"; timerTwo=window.setTimeout(cmd,100); } else if (seed <= 0) { if (-seed < msg.length) { out+=msg.substring(-seed,msg.length); seed--; window.status=out; cmd=\"scrollit(\"+seed+\")\"; timerTwo=window.setTimeout(cmd,100); } else { window.status=\" \"; timerTwo=window.setTimeout(\"scrollit(100)\",75); } } } //--> </SCRIPT> <!--第二步:把“onLoad=\"scrollit(100)\"”加在<body>标记里--> <body onLoad=\"scrollit(100)\">