​x
 
<html>
<head>
<script type="text/javascript">
function moveNumbers()
{
var no=document.getElementById("no")
var option=no.options[no.selectedIndex].text
var txt=document.getElementById("result").value
txt=txt + option
document.getElementById("result").value=txt
}
</script>
</head>
​
<body>
<form>
请选择数字：<br />
<select id="no">
    <option>0</option>
    <option>1</option>
    <option>2</option>
    <option>3</option>
    <option>4</option>
    <option>5</option>
    <option>6</option>
    <option>7</option>
    <option>8</option>
    <option>9</option>
</select>
<input type="button" onclick="moveNumbers()" value="-->"> 
<input type="text" id="result" size="20">
</form>
</body>
​