Javascript 而已,很简单。
<script language="javascript" type="text/javascript">
function fillFolder(inobj,outobj)
{
inobj = document.getElementById(inobj);
outobj = document.getElementById(outobj);
outobj.value = "***/"+inobj.value;
}
</script>
<input name="username" type="text" onKeyUp="fillFolder('username','usermenu')" id="username" size="20">
<input name="usermenu" id="usermenu" type="text"username"" size="20" >
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