要完成此效果把如下代码加入到<body>区域中 <p align="center"> </p> <div align="center"><center> <table border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><form name="form2" onSubmit="null"> <p><input type="submit" name="banner" VALUE="Submit" onClick="alert('You have to put an \'action=[url]\' on the form tag!!')"> <br> <script language="JavaScript"><!-- Jon Eyrick - tt1234@263.net // I do not take full credit for this script, I only made half of this.. var id,pause=0,position=0; function banner() { // variables declaration var i,k,msg="内容";// increase msg k=(30/msg.length)+1; for(i=0;i<=k;i++) msg+=" "+msg; // show it to the window document.form2.banner.value=msg.substring(position,position-30); // set new position if(position++==msg.length) position=0; // repeat at entered speed id=setTimeout("banner()",60); } // end --> banner(); </script></p> </form> </td> </tr> </table> </center></div> <p> </p>