[CODE]
<script language="JavaScript">
function bb(str){
document.form1.in1.value=str;
}
</script>
<form name="form1" method="post" action="">
<select name="ss" onChange="bb(document.form1.ss.options[document.form1.ss.selectedIndex].value)">
<option value="请选择" selected>请选择</option>
<option value="选项一">选项一</option>
<option value="选项二">选项二</option>
</select>
<br>
<input type="text" name="in1">
</form>[/CODE]
这是javascript问题