其实你是想要这种效果对么,看下面的代码,我已经调试成功了
<script language="javascript">
function Dis()
{
form1.text1.value=form1.text1.value+"a";
setTimeout("Dis()",1000);
}
</script>
<body ONLOAD="Dis()">
<form name="form1">
<input type="text" name="text1" value="">
</form>
</body>