HTML文件中如何使用包含

<IFRAME NAME="content_frame" width=100% height=30 marginwidth=0 marginheight=0 SRC="import.htm" ></IFRAME>

<iframe name="content_frame" marginwidth=0 marginheight=0 width=100% height=30 src="import.htm" frameborder=0></iframe>

<object style="border:0px" type="text/x-scriptlet" data="import.htm" width=100% height=30></object>

<span id=showImport></span>
<IE:Download ID="oDownload" STYLE="behavior:url(#default#download)" />
<script>
function onDownloadDone(downDate){
showImport.innerHTML=downDate
}
oDownload.startDownload('import.htm',onDownloadDone)
</script>