如何用js把1-100添加到select中 ??????????

Question

<script>
function alertTest()
{
for(i=1;i<=100;i++)
{
document.all.selTest.options.add(new Option(i,i));
}
}
</script>
<select name="selTest" id="selTest">
    </select>
<input type=button value=click onclick="alertTest()">

Answer 1

for (i=1;i<1=100;i++)
{options[i].text=i
options[i].value=i}

Answer 2

<select name=s1>
</select>
<script>
var s=[];
for(var i=1;i<=100;i++)
s[i-1]=i;
document.getElementsByName("s1")[0].outerHTML="<select name=s1><option>"+s.join("<option>")+"</select>";
</script>

Answer 3

把i加大到1000，效率问题就显现了<select name=s1>
</select>
<script>
var t=new Date().getTime();
var s=[];
for(var i=1;i<=1000;i++)
s[i-1]=i;
document.getElementsByName("s1")[0].outerHTML="<select name=s1><option>"+s.join("<option>")+"</select>";
document.write(""+(new Date().getTime()-t)+"ms<br>");
</script>baiyunfei的代码
<select name=selTest>
</select>
<script>
function alertTest()
{
for(i=1;i<=1000;i++)
{
document.all.selTest.options.add(new Option(i,i));
}
}
var t=new Date().getTime();
alertTest();
document.write(""+(new Date().getTime()-t)+"ms<br>");
</script>