关闭窗口的操作 xmlhttp 的post取不到值, get取得到值
POST方式： 取不到值

<script language= "javascript ">
window.onbeforeunload = function()
{
var n = window.event.screenX - window.screenLeft;
var b = n > document.documentElement.scrollWidth-20;
if(b && window.event.clientY < 0 || window.event.altKey)
{
var xmlhttp = new ActiveXObject( "Microsoft.XMLHTTP ");
ListString = "action=dl&qty=2&dID_1=39&dt_1=2000&dht_1=0&dID_2=44&dt_2=1000&dht_2=0 "
var Url = "tttt.asp "
xmlhttp.open( "post ", Url, false);
xmlhttp.setRequestHeader( "Content-Length ",ListString.length);
xmlhttp.setRequestHeader( "Content-Type ", "application/x-www-form-urlencode ")
xmlhttp.send(ListString);

alert(xmlhttp.responseText);
}
}
</script>
------------------------

GET方式： 可以取到值

<script language= "javascript ">
window.onbeforeunload = function()
{
var n = window.event.screenX - window.screenLeft;
var b = n > document.documentElement.scrollWidth-20;
if(b && window.event.clientY < 0 || window.event.altKey)
{
var xmlhttp = new ActiveXObject( "Microsoft.XMLHTTP ");
xmlhttp.open( "get ", "tttt.asp?action=dl&qty=2&dID_1=39&dt_1=2000&dht_1=0&dID_2=44&dt_2=1000&dht_2=0 ", false);
xmlhttp.send();
alert(xmlhttp.responseText);

}
}
</script>

------------------------

tttt.asp

action=Replace(trim(Request( "action ")), " ' ", " ")
qty=Replace(trim(CLng(Request( "qty "))), " ' ", " ")
dID_1=Replace(trim(CLng(Request( "dID_1 "))), " ' ", " ")
dt_1=Replace(trim(CLng(Request( "dt_1 "))), " ' ", " ")
dht_1=Replace(trim(CLng(Request( "dht_1 "))), " ' ", " ")
dID_2=Replace(trim(CLng(Request( "dID_2 "))), " ' ", " ")
dt_2=Replace(trim(CLng(Request( "dt_2 "))), " ' ", " ")
dht_2=Replace(trim(CLng(Request( "dht_2 "))), " ' ", " ")

Response.Write action& "　 "&qty& "　 "&dID_1& "　 "&dt_1& "　 "&dht_1& "　 "&dID_2& "　 "&dt_2& "　 "&dht_2
Response.End
------------------------


把 Request改为 Request.Form ，POST也一样取不到值

请问，是哪里出了问题？谢谢！！


[解决办法]
open后这样吧.
xmlhttp.onreadystatechange=function() {
if (xmlhttp.readyState==4) {
alert(xmlhttp.responseText)
}

}
[解决办法]
xmlhttp.open( "get ", "tttt.asp?action=dl&qty=2&dID_1=39&dt_1=2000&dht_1=0&dID_2=44&dt_2=1000&dht_2=0 ", false);
xmlhttp.send();

修改成试试：

xmlhttp.open( 'POST ', 'tttt.asp ',true);
xmlhttp.setRequestHeader( 'Content-Type ', 'application/x-www-form-urlencoded ');
var SendData = action=dl&qty=2&dID_1=39&dt_1=2000&dht_1=0&dID_2=44&dt_2=1000&dht_2=0;
xmlhttp.send(SendData);