<input type = text id = aaa ><input type = button value = stop id = bb onclick = bb()><script><!--var iTimefunction aa(){ aaa.value += "!"; iTime=setTimeout("aa()",600);}function bb(){ if (iTime !="") clearTimeout(iTime);}aa()--></script>希望本文所述对大家的javascript程序设计有所帮助。