<script language="javascript">
function setValue(){
var returnstr = "";
var sel = document.all.aaa;
for(i=0 ;i<sel.options.length;i++){
if(sel.options[i].selected == true){
if(returnstr != "")
returnstr = returnstr + "," + sel.options[i].value;
else
returnstr = sel.options[i].value;
}
}
alert(returnstr);}
</script><select name="aaa" multiple size="4">
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
</select>
<input type="button" name="a" onclick="setValue()">
function setValue(){
var returnstr = "";
var sel = document.all.aaa;
for(i=0 ;i<sel.options.length;i++){
if(sel.options[i].selected == true){
if(returnstr != "")
returnstr = returnstr + "," + sel.options[i].value;
else
returnstr = sel.options[i].value;
}
}
alert(returnstr);}
</script><select name="aaa" multiple size="4">
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
</select>
<input type="button" name="a" onclick="setValue()">
只循环选中部分,我也不知道该什么取,问问斑竹吧。